{"id":1557,"date":"2026-11-04T13:51:34","date_gmt":"2026-11-04T13:51:34","guid":{"rendered":"https:\/\/www.ahosting.net\/blog\/?p=1557"},"modified":"2026-11-05T13:58:30","modified_gmt":"2026-11-05T13:58:30","slug":"the-package-could-not-be-installed","status":"publish","type":"post","link":"https:\/\/www.ahosting.net\/blog\/the-package-could-not-be-installed\/","title":{"rendered":"The Package Could Not Be Installed: Find the Real Cause (2026)"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the package could not be installed mean when I upload a WordPress plugin in 2026?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Specifically, it is the headline WordPress prints whenever it unpacks your zip and then refuses what is inside. The upload itself worked. The line directly under the headline names the check that failed, such as no valid plugins were found or a missing style.css.\"}}, {\"@type\": \"Question\", \"name\": \"Why is the package could not be installed followed by no valid plugins were found?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"In practice, it means WordPress looked at the top of the unpacked folder and found no PHP file with a Plugin Name comment. The usual causes are a second item beside the plugin folder, a plugin nested one level too deep, a zip inside the zip, or a theme uploaded as a plugin.\"}}, {\"@type\": \"Question\", \"name\": \"How do I fix the package could not be installed when the theme is missing the style.css stylesheet?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Typically the zip holds a plugin, or the theme sits inside a wrapper folder, or a stray file sits beside the theme folder. Open the zip, make sure style.css is directly inside the single top-level folder, and upload the re-zipped file again.\"}}, {\"@type\": \"Question\", \"name\": \"Does a __MACOSX folder cause the package could not be installed on a zip made on a Mac?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"In practice, no. In our WordPress 7.1.4 lab a plugin zip that carried a __MACOSX entry beside the plugin folder installed normally, because the unzip code skips that folder. Look for a second visible item or a nested folder instead.\"}}, {\"@type\": \"Question\", \"name\": \"Is the package could not be installed a PHP version problem or a zip layout problem?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"However, it can be either, and the second line tells you which. A line that starts with The PHP version on your server is a version problem. No valid plugins were found, or a missing style.css, is a zip layout problem.\"}}, {\"@type\": \"Question\", \"name\": \"Does AHosting shared hosting cause the package could not be installed when I upload a plugin?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"In fact, the checks read the contents of your zip, so the host rarely matters. The host matters only when the server cannot open the archive at all. We measured on a workstation lab, not on an AHosting server, so treat that last point as untested.\"}}, {\"@type\": \"Question\", \"name\": \"Can I install a plugin from cPanel File Manager on AHosting web hosting in 2026?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Indeed, yes, with a caveat. The web hosting plans list File Manager, and cPanel documents an Extract action for zip files. Extracting by hand skips the upload screen, so the installer check never runs and an invalid package simply will not appear in the Plugins list.\"}}, {\"@type\": \"Question\", \"name\": \"GitHub zip vs vendor zip: which is more likely to cause the package could not be installed?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For example, a GitHub archive keeps the repository name in its folder structure, so it fails when the plugin lives in a subfolder of the repository. A vendor download fails when it bundles the real zip beside documentation. Both end at the same second line.\"}}, {\"@type\": \"Question\", \"name\": \"Is it safe to retry an upload after the package could not be installed on a live AHosting site?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Indeed, it is safe. In our lab a failed install added nothing to the plugins folder. The unpacked files stayed in wp-content\/upgrade until the next install or update cleared that folder, so nothing active changed.\"}}, {\"@type\": \"Question\", \"name\": \"Theme zip vs plugin zip: how can I tell which one I downloaded before uploading in 2026?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Finally, open the zip without installing it. A theme has a style.css file with a Theme Name comment. A plugin has a PHP file that begins with a Plugin Name comment. Uploading either one on the wrong screen produces the package error.\"}}]}<\/script>\n\n\n<div class=\"wp-block-aioseo-table-of-contents\"><ul><li><a class=\"aioseo-toc-item\" href=\"#the-package-could-not-be-installed\">The Package Could Not Be Installed: What WordPress Is Rejecting<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#read-the-line-under-the-package-could-not-be-installed\">Read the Line Under the Package Could Not Be Installed Message<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#why-the-package-could-not-be-installed-one-folder-rule\">Why the Package Could Not Be Installed: The One-Folder Rule<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#ahosting-zip-layout-test-matrix\">AHosting Zip Layout Test Matrix: What Installed and What Did Not<\/a><ul><li><a class=\"aioseo-toc-item\" href=\"#aioseo-plugin-zips-layout\">Plugin zips: layout<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-plugin-zips-header-version-and-archive\">Plugin zips: header, version and archive<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-theme-zips\">Theme zips<\/a><\/li><\/ul><\/li><li><a class=\"aioseo-toc-item\" href=\"#where-zips-come-from\">Where Zips Come From: GitHub, Vendor Bundles and macOS<\/a><ul><li><a class=\"aioseo-toc-item\" href=\"#aioseo-github-archives\">GitHub archives<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-vendor-and-marketplace-bundles\">Vendor and marketplace bundles<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#aioseo-zips-made-on-a-mac\">Zips made on a Mac<\/a><\/li><\/ul><\/li><li><a class=\"aioseo-toc-item\" href=\"#when-the-package-could-not-be-installed-is-the-server\">When the Package Could Not Be Installed Because of the Server<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#decode-the-package-could-not-be-installed\">Decode Your Own Message: The Package Could Not Be Installed Checker<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#fix-re-zip-one-folder\">Fix It: Re-zip So the Plugin Sits in One Folder<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#after-the-zip-installs\">After the Zip Installs: Try Unknown Packages on a Copy First<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-the-package-could-not-be-installed\">Frequently Asked Questions: The Package Could Not Be Installed<\/a><ul><li><a class=\"aioseo-toc-item\" href=\"#faq-what-does-the-package-could-not-be-installed-mean\">What does the package could not be installed mean when I upload a WordPress plugin in 2026?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-the-package-could-not-be-installed-no-valid-plugins\">Why is the package could not be installed followed by no valid plugins were found?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-the-package-could-not-be-installed-missing-style-css\">How do I fix the package could not be installed when the theme is missing the style.css stylesheet?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-the-package-could-not-be-installed-macosx-folder\">Does a __MACOSX folder cause the package could not be installed on a zip made on a Mac?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-the-package-could-not-be-installed-php-version-or-zip\">Is the package could not be installed a PHP version problem or a zip layout problem?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-ahosting-the-package-could-not-be-installed\">Does AHosting shared hosting cause the package could not be installed when I upload a plugin?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-install-plugin-from-file-manager-ahosting\">Can I install a plugin from cPanel File Manager on AHosting web hosting in 2026?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-github-zip-vs-vendor-zip-package-could-not-be-installed\">GitHub zip vs vendor zip: which is more likely to cause the package could not be installed?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-retry-after-the-package-could-not-be-installed-ahosting\">Is it safe to retry an upload after the package could not be installed on a live AHosting site?<\/a><\/li><li><a class=\"aioseo-toc-item\" href=\"#faq-theme-zip-vs-plugin-zip-in-2026\">Theme zip vs plugin zip: how can I tell which one I downloaded before uploading in 2026?<\/a><\/li><\/ul><\/li><\/ul><\/div>\n\n\n<div class=\"ah-tldr\">\n  <span class=\"ah-tldr-badge\">TL;DR<\/span>\n  <p>The package could not be installed is only a headline. The line under it names the check that failed. In our WordPress 7.1.4 lab, a plugin zip installed only when its main file sat inside one folder and nothing else sat beside that folder. Open the zip, fix its top level, and upload again. A failed upload changes nothing on the live site.<\/p>\n<\/div>\n\n\n\n<figure class=\"wp-block-audio\"><audio preload=\"none\" controls src=\"https:\/\/www.ahosting.net\/blog\/wp-content\/uploads\/2026\/11\/PODCAST-the-package-could-not-be-installed.m4a\"><\/audio><figcaption class=\"wp-element-caption\">Listen: WordPress prints one generic headline for every refused zip, and the line under it names the real check. By Matt Chrust, Director of Business Development, AHosting.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"the-package-could-not-be-installed\" class=\"wp-block-heading\">The Package Could Not Be Installed: What WordPress Is Rejecting<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When WordPress says the package could not be installed, it has already received your zip and unpacked it. The upload worked. What failed is the inspection that follows, and the verdict sits in a second line that most people skim past. That second line is the whole diagnosis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide decodes it for plugin and theme uploads. It shows which zip layouts WordPress accepted and refused in a lab test, lists the few cases where the server rather than the zip is at fault, and ends with a decoder you can use on your own message. Everything was measured on stock WordPress 7.1.4 on one workstation. It was not measured on an AHosting server, and the guide says so wherever that matters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the source, the sentence is one string, declared at <code>class-wp-upgrader.php<\/code> line 205. Every refusal reuses it as a headline and attaches its own reason, which is why many different mistakes all print the same top line.<\/p>\n\n\n\n<h2 id=\"read-the-line-under-the-package-could-not-be-installed\" class=\"wp-block-heading\">Read the Line Under the Package Could Not Be Installed Message<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Match the second line to the first column below. Each row names the check inside WordPress that produced it, so you know what to fix before you touch the zip.<\/p>\n\n\n\n<figure class=\"wp-block-table ah-ladder\"><table><thead><tr><th>Second line<\/th><th>Check that fired<\/th><th>Usual cause<\/th><\/tr><\/thead><tbody><tr><td><code>No valid plugins were found.<\/code><\/td><td>Plugin check: no PHP file with a Plugin Name header at the top of the folder it inspects<\/td><td>Zip layout, a theme uploaded as a plugin, or a zip inside the zip<\/td><\/tr><tr><td><code>The theme is missing the style.css stylesheet.<\/code><\/td><td>Theme check: no style.css at the top of the folder it inspects<\/td><td>A plugin uploaded as a theme, or a wrapper folder<\/td><\/tr><tr><td><code>The style.css stylesheet does not contain a valid theme header.<\/code><\/td><td>Theme check: style.css has no Theme Name<\/td><td>A stylesheet copied from another package<\/td><\/tr><tr><td><code>Template is missing.<\/code><\/td><td>Theme check: no index.php, no templates\/index.html, no Template header<\/td><td>A partial theme copy<\/td><\/tr><tr><td><code>The PHP version on your server is ...<\/code><\/td><td>Requires PHP header is higher than the server version<\/td><td>A newer plugin on an older PHP version<\/td><\/tr><tr><td><code>Your WordPress version is ...<\/code><\/td><td>Requires at least header is higher than the site version<\/td><td>A newer plugin on an older WordPress<\/td><\/tr><tr><td><code>Incompatible Archive.<\/code> on its own screen<\/td><td>Zip validation, before the installer runs<\/td><td>A truncated download or a file that is not a zip<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Second lines printed under the package error, matched to the check that produced each (WordPress 7.1.4 source and lab).<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The first row has the least obvious cause, so this guide spends most of its time there.<\/p>\n\n\n\n<h2 id=\"why-the-package-could-not-be-installed-one-folder-rule\" class=\"wp-block-heading\">Why the Package Could Not Be Installed: The One-Folder Rule<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">After unpacking, <code>install_package()<\/code> looks at what is directly inside the unpacked folder. If there is exactly one item and it is a folder, WordPress steps inside it and treats its contents as the package. Anything else, and WordPress uses the unpacked folder as it stands. That is the one folder rule, and it sits at lines 606 to 614 of the same file.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The plugin check then runs <code>check_package()<\/code> on whatever folder was chosen. It globs for <code>*.php<\/code> directly in that folder, reads the header of each file it finds, and stops at the first one that has a Plugin Name. It never looks into a subfolder. If no file qualifies, it returns <code>No valid plugins were found.<\/code>, at <code>class-plugin-upgrader.php<\/code> line 490.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Two consequences follow. A readme.txt or a second folder next to the plugin folder is enough to fail, because WordPress no longer steps inside. And a plugin wrapped in an extra folder fails, because WordPress steps in once and finds only another folder. The header reader also takes only the first 8 KB of each file, so a Plugin Name comment buried under a long license block can be missed. The official header requirements page lists Plugin Name as the one required field. <a href=\"https:\/\/developer.wordpress.org\/plugins\/plugin-basics\/header-requirements\/\" target=\"_blank\" rel=\"noopener\">WordPress plugin header requirements<\/a> explains where the comment belongs.<\/p>\n\n\n\n<div class=\"ah-infographic\">\n  <svg viewBox=\"0 0 720 330\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" role=\"img\" aria-label=\"Four plugin zip layouts and what WordPress 7.1.4 did with each in the AHosting lab\">\n    <title>Four plugin zip layouts and the result of each upload<\/title>\n    <desc>Two layouts installed: a single plugin folder, and plugin files directly at the zip root. Two failed with No valid plugins were found: a folder with a readme beside it, and a plugin folder wrapped inside another folder.<\/desc>\n    <rect x=\"0\" y=\"0\" width=\"720\" height=\"330\" rx=\"12\" fill=\"#f8fafc\" stroke=\"#cbd5e1\"\/>\n    <text x=\"360\" y=\"30\" text-anchor=\"middle\" font-family=\"Arial, Helvetica, sans-serif\" font-size=\"17\" font-weight=\"700\" fill=\"#0f172a\">What the top of your zip has to look like<\/text>\n    <g font-family=\"Arial, Helvetica, sans-serif\" font-size=\"13\" fill=\"#0f172a\">\n      <rect x=\"16\" y=\"50\" width=\"164\" height=\"230\" rx=\"8\" fill=\"#ffffff\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n      <text x=\"28\" y=\"74\" font-weight=\"700\" fill=\"#166534\">INSTALLED<\/text>\n      <text x=\"28\" y=\"104\">my-plugin\/<\/text>\n      <text x=\"44\" y=\"126\">my-plugin.php<\/text>\n      <text x=\"44\" y=\"148\">includes\/<\/text>\n      <text x=\"28\" y=\"188\" fill=\"#475569\">One folder, main file<\/text>\n      <text x=\"28\" y=\"206\" fill=\"#475569\">directly inside it.<\/text>\n      <rect x=\"196\" y=\"50\" width=\"164\" height=\"230\" rx=\"8\" fill=\"#ffffff\" stroke=\"#16a34a\" stroke-width=\"2\"\/>\n      <text x=\"208\" y=\"74\" font-weight=\"700\" fill=\"#166534\">INSTALLED<\/text>\n      <text x=\"208\" y=\"104\">my-plugin.php<\/text>\n      <text x=\"208\" y=\"126\">includes\/<\/text>\n      <text x=\"208\" y=\"188\" fill=\"#475569\">No folder at all:<\/text>\n      <text x=\"208\" y=\"206\" fill=\"#475569\">files at the zip root.<\/text>\n      <rect x=\"376\" y=\"50\" width=\"164\" height=\"230\" rx=\"8\" fill=\"#ffffff\" stroke=\"#dc2626\" stroke-width=\"2\"\/>\n      <text x=\"388\" y=\"74\" font-weight=\"700\" fill=\"#991b1b\">REFUSED<\/text>\n      <text x=\"388\" y=\"104\">my-plugin\/<\/text>\n      <text x=\"404\" y=\"126\">my-plugin.php<\/text>\n      <text x=\"388\" y=\"148\">readme.txt<\/text>\n      <text x=\"388\" y=\"188\" fill=\"#475569\">Two items at the top,<\/text>\n      <text x=\"388\" y=\"206\" fill=\"#475569\">so no folder is entered.<\/text>\n      <rect x=\"556\" y=\"50\" width=\"148\" height=\"230\" rx=\"8\" fill=\"#ffffff\" stroke=\"#dc2626\" stroke-width=\"2\"\/>\n      <text x=\"568\" y=\"74\" font-weight=\"700\" fill=\"#991b1b\">REFUSED<\/text>\n      <text x=\"568\" y=\"104\">wrapper\/<\/text>\n      <text x=\"584\" y=\"126\">my-plugin\/<\/text>\n      <text x=\"600\" y=\"148\">my-plugin.php<\/text>\n      <text x=\"568\" y=\"188\" fill=\"#475569\">Main file is one<\/text>\n      <text x=\"568\" y=\"206\" fill=\"#475569\">level too deep.<\/text>\n    <\/g>\n    <text x=\"360\" y=\"310\" text-anchor=\"middle\" font-family=\"Arial, Helvetica, sans-serif\" font-size=\"12\" fill=\"#475569\">AHosting lab, WordPress 7.1.4, PHP 8.5.10. Refused layouts returned: No valid plugins were found.<\/text>\n  <\/svg>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The graphic above shows the four layouts we tested first. The tables that follow cover the rest.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ah-yt\" data-id=\"_FrFl3wAVsQ\" data-title=\"The Package Could Not Be Installed: Find the Real Cause (2026)\"><img src=\"https:\/\/i.ytimg.com\/vi\/_FrFl3wAVsQ\/hqdefault.jpg\" alt=\"\" width=\"480\" height=\"360\" loading=\"lazy\" decoding=\"async\"><button type=\"button\" class=\"ah-yt-play\" aria-label=\"Play video: The Package Could Not Be Installed: Find the Real Cause (2026)\"><span aria-hidden=\"true\"><\/span><\/button><\/div>\n<\/div><\/figure>\n\n\n\n<h2 id=\"ahosting-zip-layout-test-matrix\" class=\"wp-block-heading\">AHosting Zip Layout Test Matrix: What Installed and What Did Not<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We built 22 test zips with a script, added one real GitHub archive, and uploaded each one through the normal Plugins and Themes screens on a fresh WordPress 7.1.4 install. The tables record exactly what the screen printed. The zips were made with Python, not with macOS Compress or a GitHub download, so the tables test layouts, not tools.<\/p>\n\n\n\n<h3 id=\"aioseo-plugin-zips-layout\" class=\"wp-block-heading\">Plugin zips: layout<\/h3>\n\n\n\n<figure class=\"wp-block-table ah-ladder\"><table><thead><tr><th>Zip layout<\/th><th>Result<\/th><\/tr><\/thead><tbody><tr><td><code>my-plugin\/my-plugin.php<\/code><\/td><td>Installed<\/td><\/tr><tr><td><code>my-plugin.php<\/code> directly at the zip root<\/td><td>Installed<\/td><\/tr><tr><td>Plugin folder plus a <code>__MACOSX<\/code> folder<\/td><td>Installed<\/td><\/tr><tr><td>Plugin folder plus <code>readme.txt<\/code> beside it<\/td><td>No valid plugins were found.<\/td><\/tr><tr><td>Plugin folder plus a second folder of docs<\/td><td>No valid plugins were found.<\/td><\/tr><tr><td><code>wrapper\/my-plugin\/my-plugin.php<\/code><\/td><td>No valid plugins were found.<\/td><\/tr><tr><td><code>my-plugin\/includes\/my-plugin.php<\/code><\/td><td>No valid plugins were found.<\/td><\/tr><tr><td>A zip inside the zip, plus a license file<\/td><td>No valid plugins were found.<\/td><\/tr><tr><td>A theme zip uploaded as a plugin<\/td><td>No valid plugins were found.<\/td><\/tr><tr><td>Real GitHub archive of the Classic Editor plugin, trunk<\/td><td>Installed, into the folder <code>classic-editor-trunk<\/code><\/td><\/tr><tr><td>Only an empty folder<\/td><td>No valid plugins were found.<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">AHosting Zip Layout Test Matrix, part 1: plugin uploads by folder layout. WordPress 7.1.4 lab, one workstation.<\/figcaption><\/figure>\n\n\n\n<h3 id=\"aioseo-plugin-zips-header-version-and-archive\" class=\"wp-block-heading\">Plugin zips: header, version and archive<\/h3>\n\n\n\n<figure class=\"wp-block-table ah-ladder\"><table><thead><tr><th>Zip content<\/th><th>Result<\/th><\/tr><\/thead><tbody><tr><td>PHP file with no Plugin Name header<\/td><td>No valid plugins were found.<\/td><\/tr><tr><td>Plugin Name header after the first 9,000 bytes<\/td><td>No valid plugins were found.<\/td><\/tr><tr><td>Header says Requires PHP 99.0<\/td><td>The PHP version on your server is 8.5.10, however the uploaded plugin requires 99.0.<\/td><\/tr><tr><td>Zip cut to half its size<\/td><td>Own screen: Incompatible Archive. No headline.<\/td><\/tr><tr><td>A text file renamed to .zip<\/td><td>Own screen: Incompatible Archive. No headline.<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">AHosting Zip Layout Test Matrix, part 2: header, version and archive failures. WordPress 7.1.4 lab.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The last two rows matter for diagnosis. A broken archive is caught earlier, by a validity check that runs before the installer, so it never prints the package error at all. If you see the headline, the file was a readable zip.<\/p>\n\n\n\n<h3 id=\"aioseo-theme-zips\" class=\"wp-block-heading\">Theme zips<\/h3>\n\n\n\n<figure class=\"wp-block-table ah-ladder\"><table><thead><tr><th>Zip layout<\/th><th>Result<\/th><\/tr><\/thead><tbody><tr><td><code>my-theme\/style.css<\/code> plus <code>index.php<\/code><\/td><td>Installed<\/td><\/tr><tr><td><code>style.css<\/code> and <code>index.php<\/code> at the zip root<\/td><td>Installed<\/td><\/tr><tr><td>A plugin zip uploaded as a theme<\/td><td>The theme is missing the style.css stylesheet.<\/td><\/tr><tr><td><code>pkg\/my-theme\/style.css<\/code><\/td><td>The theme is missing the style.css stylesheet.<\/td><\/tr><tr><td>Theme folder plus <code>notes.txt<\/code> beside it<\/td><td>The theme is missing the style.css stylesheet.<\/td><\/tr><tr><td>style.css with no Theme Name<\/td><td>The style.css stylesheet does not contain a valid theme header.<\/td><\/tr><tr><td>style.css but no index.php<\/td><td>Template is missing.<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">AHosting Zip Layout Test Matrix, part 3: theme uploads. WordPress 7.1.4 lab.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Themes follow the same one folder rule, and the stylesheet rules are documented on the <a href=\"https:\/\/developer.wordpress.org\/themes\/basics\/main-stylesheet-style-css\/\" target=\"_blank\" rel=\"noopener\">main stylesheet page for theme developers<\/a>. In the lab, all three kinds of mistake printed the same headline with a different second line.<\/p>\n\n\n\n<h2 id=\"where-zips-come-from\" class=\"wp-block-heading\">Where Zips Come From: GitHub, Vendor Bundles and macOS<\/h2>\n\n\n\n<h3 id=\"aioseo-github-archives\" class=\"wp-block-heading\">GitHub archives<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GitHub generates its archives with <code>git archive<\/code>, and says the repository name is part of the folder structure inside the file. <a href=\"https:\/\/docs.github.com\/en\/repositories\/working-with-files\/using-files\/downloading-source-code-archives\" target=\"_blank\" rel=\"noopener\">GitHub documents this<\/a> plainly. In the lab, the trunk archive of the WordPress Classic Editor plugin had one top-level folder and installed cleanly, but into a folder named <code>classic-editor-trunk<\/code>, not <code>classic-editor<\/code>. That shape works only when the plugin sits at the root of the repository. When the plugin lives in a subfolder, the wrapper layout from the matrix applies and you get the package error. Zip the subfolder yourself instead.<\/p>\n\n\n\n<h3 id=\"aioseo-vendor-and-marketplace-bundles\" class=\"wp-block-heading\">Vendor and marketplace bundles<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some vendors ship a download that holds the installable zip next to documentation, a license file or sample content. Upload that bundle as it comes and WordPress sees a zip inside a zip. The lab result is the same as for any other extra item at the top: <code>No valid plugins were found.<\/code> Unzip the bundle on your computer and upload the inner zip.<\/p>\n\n\n\n<h3 id=\"aioseo-zips-made-on-a-mac\" class=\"wp-block-heading\">Zips made on a Mac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A popular explanation blames the <code>__MACOSX<\/code> folder that macOS adds to some archives. In WordPress 7.1.4 that is wrong: the unzip code skips <code>__MACOSX\/<\/code> entries at <code>file.php<\/code> line 1709, and our test zip carrying one installed normally. The real Mac risk is selecting several items before choosing Compress. <a href=\"https:\/\/support.apple.com\/guide\/mac-help\/zip-and-unzip-files-and-folders-on-mac-mchlp2528\/mac\" target=\"_blank\" rel=\"noopener\">Apple documents<\/a> that several items at once become a file called Archive.zip, so open it and check what is at the top before you upload.<\/p>\n\n\n\n<h2 id=\"when-the-package-could-not-be-installed-is-the-server\" class=\"wp-block-heading\">When the Package Could Not Be Installed Because of the Server<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most cases are zip layout. A smaller group is the archive itself. The plain Incompatible Archive screen appears when WordPress cannot open the file as a zip. It opens the file in a strict consistency mode, and <a href=\"https:\/\/www.php.net\/manual\/en\/ziparchive.open.php\" target=\"_blank\" rel=\"noopener\">the PHP manual for ZipArchive::open<\/a> lists the error codes, including one for a file that is not a zip archive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The usual reason is a download cut short. Zip files keep their index, the end of central directory record, at the end of the file, so a truncated copy has no index. The <a href=\"https:\/\/pkware.cachefly.net\/webdocs\/casestudies\/APPNOTE.TXT\" target=\"_blank\" rel=\"noopener\">PKWARE format specification<\/a> requires that record in every valid zip. Download the file again and compare its size with the source before you retry.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If the PHP zip extension is missing, WordPress falls back to its bundled PclZip library, so a missing extension alone does not cause this error. We forced that fallback in the lab with a filter and the results on three test zips matched the normal path exactly. We did not test a server where the extension is truly absent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Size and permission problems print different messages. A file over the upload limit gets the <a href=\"https:\/\/www.ahosting.net\/blog\/the-link-you-followed-has-expired\/\">link you followed has expired<\/a> screen or a <a href=\"https:\/\/www.ahosting.net\/blog\/wordpress-413-request-entity-too-large\/\">413 error<\/a>. A folder WordPress cannot write to gets <a href=\"https:\/\/www.ahosting.net\/blog\/installation-failed-could-not-create-directory\/\">could not create directory<\/a>, and a repeat install of the same plugin gets <a href=\"https:\/\/www.ahosting.net\/blog\/installation-failed-destination-folder-already-exists\/\">destination folder already exists<\/a>. If you see one of those, this guide is the wrong one.<\/p>\n\n\n\n<h2 id=\"decode-the-package-could-not-be-installed\" class=\"wp-block-heading\">Decode Your Own Message: The Package Could Not Be Installed Checker<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Use the decoder to turn the second line into a cause and a fix. It runs in your browser and changes nothing on your site.<\/p>\n\n\n\n<style>\n.ahpk-tool{border:1px solid #cbd5e1;border-radius:12px;padding:20px;background:#f8fafc;margin:24px 0;}\n.ahpk-tool h3{margin:0 0 12px;font-size:1.25rem;color:#0f172a;}\n.ahpk-tool label{display:block;font-weight:600;margin:12px 0 4px;color:#0f172a;}\n.ahpk-tool select{width:100%;padding:10px;border:1px solid #64748b;border-radius:8px;background:#ffffff;color:#0f172a;font-size:1rem;}\n.ahpk-tool .ahpk-out{margin-top:16px;padding:14px 16px;background:#ffffff;border-left:4px solid #2563eb;color:#0f172a;}\n.ahpk-tool .ahpk-out p{margin:0 0 8px;}\n.ahpk-tool .ahpk-note{color:#475569;font-size:0.95rem;}\na.ahpk-btn.wp-element-button{display:inline-block;margin-top:8px;color:#ffffff!important;background:#2563eb!important;text-decoration:none!important;padding:10px 16px;border-radius:8px;}\n<\/style>\n<div class=\"ahpk-tool\" data-ahpk=\"decoder\">\n  <h3>Package Error Decoder<\/h3>\n  <p class=\"ahpk-note\">Pick the line printed under the headline, then where the zip came from. Nothing is sent anywhere.<\/p>\n  <label for=\"ahpk-line\">Line under the headline<\/label>\n  <select id=\"ahpk-line\">\n    <option value=\"noplugin\">No valid plugins were found.<\/option>\n    <option value=\"nostyle\">The theme is missing the style.css stylesheet.<\/option>\n    <option value=\"nohdr\">The style.css stylesheet does not contain a valid theme header.<\/option>\n    <option value=\"notpl\">Template is missing. Standalone themes need to have a templates\/index.html or index.php template file.<\/option>\n    <option value=\"ver\">The PHP version on your server is &#8230;, however the uploaded plugin requires &#8230;<\/option>\n    <option value=\"incompat\">Incompatible Archive. (a plain error screen, no headline)<\/option>\n  <\/select>\n  <label for=\"ahpk-src\">Where the zip came from<\/label>\n  <select id=\"ahpk-src\">\n    <option value=\"unknown\">I am not sure<\/option>\n    <option value=\"github\">GitHub, Download ZIP<\/option>\n    <option value=\"bundle\">A vendor or marketplace download<\/option>\n    <option value=\"own\">A folder I zipped myself<\/option>\n  <\/select>\n  <div class=\"ahpk-out\" id=\"ahpk-out\" aria-live=\"polite\"><\/div>\n  <a class=\"ahpk-btn wp-element-button\" id=\"ahpk-btn\" href=\"https:\/\/www.ahosting.net\/blog\/plugin-could-not-be-activated-fatal-error\/\">If activation fails next, read this<\/a>\n<\/div>\n<script>\n(function(){\n  document.addEventListener('DOMContentLoaded', function(){\n    var root = document.querySelector('.ahpk-tool');\n    if (!root) { return; }\n    var id = root.getAttribute('data-ahpk');\n    if (!id) { return; }\n    var line = document.getElementById('ahpk-line');\n    if (!line) { return; }\n    var src = document.getElementById('ahpk-src');\n    if (!src) { return; }\n    var out = document.getElementById('ahpk-out');\n    if (!out) { return; }\n    var btn = document.getElementById('ahpk-btn');\n    if (!btn) { return; }\n    var base = 'https:\/\/www.ahosting.net\/blog\/';\n    var LINES = {\n      noplugin: {\n        cause: 'WordPress unpacked the zip and found no PHP file with a Plugin Name comment directly inside the folder it checks.',\n        fix: 'Open the zip on your computer. Make the top level one folder, put the main plugin file directly inside it, then zip that folder again.',\n        slug: 'plugin-could-not-be-activated-fatal-error\/', label: 'If activation fails next, read this'\n      },\n      nostyle: {\n        cause: 'The folder WordPress checked has no style.css. Either this is a plugin zip, or the theme sits one folder too deep, or a stray file beside the theme folder stopped WordPress from entering it.',\n        fix: 'Open the zip. style.css must be directly inside the single top-level folder, or at the zip root. Re-zip and upload on the Themes screen.',\n        slug: 'installation-failed-could-not-create-directory\/', label: 'If the next error is Could not create directory'\n      },\n      nohdr: {\n        cause: 'style.css exists but has no Theme Name comment at the top.',\n        fix: 'Add a comment block that starts with Theme Name: to style.css, or confirm you uploaded the real theme and not a stylesheet from another package.',\n        slug: 'installation-failed-destination-folder-already-exists\/', label: 'If the next error is Destination folder already exists'\n      },\n      notpl: {\n        cause: 'The theme has a style.css and a name, but no index.php, no templates\/index.html and no Template header, so WordPress cannot tell what it is.',\n        fix: 'A standalone theme needs index.php or templates\/index.html. A child theme needs a Template header in style.css. Upload the full theme, not a partial copy.',\n        slug: 'installation-failed-destination-folder-already-exists\/', label: 'If the next error is Destination folder already exists'\n      },\n      ver: {\n        cause: 'The package is fine. Its header asks for a newer PHP or WordPress version than the site runs.',\n        fix: 'Change the PHP version in cPanel, or update WordPress, or pick a plugin release that supports your versions. Do not edit the header to get past the check.',\n        slug: 'plugin-could-not-be-activated-fatal-error\/', label: 'If activation fails next, read this'\n      },\n      incompat: {\n        cause: 'WordPress could not open the file as a zip archive, usually because the download was cut short or the file is not a zip at all.',\n        fix: 'Download the file again, check its size against the source, and open it on your computer before uploading. If large uploads fail on your site, check the upload limits.',\n        slug: 'the-link-you-followed-has-expired\/', label: 'If the upload itself is being cut off'\n      }\n    };\n    var SRC = {\n      unknown: 'Not sure what it is? A plugin has a PHP file that starts with a Plugin Name comment. A theme has a style.css with a Theme Name comment.',\n      github: 'GitHub puts the repository name into the folder structure of its archive. If the plugin lives in a subfolder of the repository, zip that subfolder instead of the whole download.',\n      bundle: 'Open the download first. If it holds another zip next to documentation or license files, upload only the inner zip.',\n      own: 'Zip the plugin folder itself, not the folder that contains it, and make sure no other file sits beside it at the top level.'\n    };\n    function render(){\n      var item = LINES[line.value];\n      if (!item) { return; }\n      var extra = SRC[src.value];\n      if (!extra) { extra = ''; }\n      out.innerHTML = '<p><strong>Likely cause.<\/strong> ' + item.cause + '<\/p><p><strong>Fix.<\/strong> ' + item.fix + '<\/p><p>' + extra + '<\/p>';\n      btn.setAttribute('href', base + item.slug);\n      btn.textContent = item.label;\n    }\n    line.addEventListener('change', render);\n    src.addEventListener('change', render);\n    render();\n  });\n})();\n<\/script>\n\n\n\n<h2 id=\"fix-re-zip-one-folder\" class=\"wp-block-heading\">Fix It: Re-zip So the Plugin Sits in One Folder<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The repair is the same for almost every layout failure. Work on your own computer, not in WordPress.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Unzip the download into an empty folder and look at the top level.<\/li>\n\n\n\n<li>Find the folder that holds the main plugin file, the PHP file that begins with a Plugin Name comment.<\/li>\n\n\n\n<li>Move anything else out of the way, so that folder is the only item you are about to zip.<\/li>\n\n\n\n<li>Zip that folder itself. On a Mac or Linux terminal, <code>zip -r my-plugin.zip my-plugin<\/code> run one level above the folder does it.<\/li>\n\n\n\n<li>Open the new zip and confirm the main file is directly inside the single top-level folder.<\/li>\n\n\n\n<li>Upload it again on the Plugins, Add New screen.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">A failed upload is harmless to a live site. In our lab nothing was added to the plugins folder, and the unpacked files waited in <code>wp-content\/upgrade<\/code> until the next install or update cleared that folder, at <code>class-wp-upgrader.php<\/code> lines 384 to 394. If the plugin installs but then will not turn on, that is a different problem and <a href=\"https:\/\/www.ahosting.net\/blog\/plugin-could-not-be-activated-fatal-error\/\">the plugin could not be activated guide<\/a> covers it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can also skip the upload screen. Upload the zip with cPanel File Manager and use its Extract action. cPanel notes that Extract works for zip files only when the zip extension exists on the server. Extracting by hand skips the installer check, so a bad package simply fails to appear in the Plugins list. Treat that as a workaround, not a fix.<\/p>\n\n\n\n<h2 id=\"after-the-zip-installs\" class=\"wp-block-heading\">After the Zip Installs: Try Unknown Packages on a Copy First<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Re-zipping solves the error. If you install third-party zips on a site that earns money, the habit worth keeping is trying them on a copy first. The <a href=\"https:\/\/www.ahosting.net\/wordpress-hosting.html\">WordPress hosting plans<\/a> list a staging site for exactly that, so a plugin that installs but breaks something never touches the live pages.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For the manual route above, the <a href=\"https:\/\/www.ahosting.net\/web-hosting.html\">web hosting plans<\/a> list File Manager and SSH access. And if you handle many client sites with their own PHP settings, a <a href=\"https:\/\/www.ahosting.net\/vps-hosting.html\">VPS with root access and snapshots<\/a> lets you roll a whole server back after a bad package.<\/p>\n\n\n\n<h2 id=\"faq-the-package-could-not-be-installed\" class=\"wp-block-heading\">Frequently Asked Questions: The Package Could Not Be Installed<\/h2>\n\n\n\n<h3 id=\"faq-what-does-the-package-could-not-be-installed-mean\" class=\"wp-block-heading\">What does the package could not be installed mean when I upload a WordPress plugin in 2026?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Specifically, it is the headline WordPress prints whenever it unpacks your zip and then refuses what is inside. The upload itself worked. The line directly under the headline names the check that failed, such as no valid plugins were found or a missing style.css.<\/p>\n\n\n\n<h3 id=\"faq-the-package-could-not-be-installed-no-valid-plugins\" class=\"wp-block-heading\">Why is the package could not be installed followed by no valid plugins were found?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In practice, it means WordPress looked at the top of the unpacked folder and found no PHP file with a Plugin Name comment. The usual causes are a second item beside the plugin folder, a plugin nested one level too deep, a zip inside the zip, or a theme uploaded as a plugin.<\/p>\n\n\n\n<h3 id=\"faq-the-package-could-not-be-installed-missing-style-css\" class=\"wp-block-heading\">How do I fix the package could not be installed when the theme is missing the style.css stylesheet?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Typically the zip holds a plugin, or the theme sits inside a wrapper folder, or a stray file sits beside the theme folder. Open the zip, make sure style.css is directly inside the single top-level folder, and upload the re-zipped file again.<\/p>\n\n\n\n<h3 id=\"faq-the-package-could-not-be-installed-macosx-folder\" class=\"wp-block-heading\">Does a __MACOSX folder cause the package could not be installed on a zip made on a Mac?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In practice, no. In our WordPress 7.1.4 lab a plugin zip that carried a __MACOSX entry beside the plugin folder installed normally, because the unzip code skips that folder. Look for a second visible item or a nested folder instead.<\/p>\n\n\n\n<h3 id=\"faq-the-package-could-not-be-installed-php-version-or-zip\" class=\"wp-block-heading\">Is the package could not be installed a PHP version problem or a zip layout problem?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">However, it can be either, and the second line tells you which. A line that starts with The PHP version on your server is a version problem. No valid plugins were found, or a missing style.css, is a zip layout problem.<\/p>\n\n\n\n<h3 id=\"faq-ahosting-the-package-could-not-be-installed\" class=\"wp-block-heading\">Does AHosting shared hosting cause the package could not be installed when I upload a plugin?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In fact, the checks read the contents of your zip, so the host rarely matters. The host matters only when the server cannot open the archive at all. We measured on a workstation lab, not on an AHosting server, so treat that last point as untested.<\/p>\n\n\n\n<h3 id=\"faq-install-plugin-from-file-manager-ahosting\" class=\"wp-block-heading\">Can I install a plugin from cPanel File Manager on AHosting web hosting in 2026?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Indeed, yes, with a caveat. The web hosting plans list File Manager, and cPanel documents an Extract action for zip files. Extracting by hand skips the upload screen, so the installer check never runs and an invalid package simply will not appear in the Plugins list.<\/p>\n\n\n\n<h3 id=\"faq-github-zip-vs-vendor-zip-package-could-not-be-installed\" class=\"wp-block-heading\">GitHub zip vs vendor zip: which is more likely to cause the package could not be installed?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For example, a GitHub archive keeps the repository name in its folder structure, so it fails when the plugin lives in a subfolder of the repository. A vendor download fails when it bundles the real zip beside documentation. Both end at the same second line.<\/p>\n\n\n\n<h3 id=\"faq-retry-after-the-package-could-not-be-installed-ahosting\" class=\"wp-block-heading\">Is it safe to retry an upload after the package could not be installed on a live AHosting site?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Indeed, it is safe. In our lab a failed install added nothing to the plugins folder. The unpacked files stayed in wp-content\/upgrade until the next install or update cleared that folder, so nothing active changed.<\/p>\n\n\n\n<h3 id=\"faq-theme-zip-vs-plugin-zip-in-2026\" class=\"wp-block-heading\">Theme zip vs plugin zip: how can I tell which one I downloaded before uploading in 2026?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Finally, open the zip without installing it. A theme has a style.css file with a Theme Name comment. A plugin has a PHP file that begins with a Plugin Name comment. Uploading either one on the wrong screen produces the package error.<\/p>\n\n\n\n<script>\n(function(){\n  document.addEventListener('DOMContentLoaded', function(){\n    var allH3s = document.querySelectorAll('h3.wp-block-heading');\n    var inFaq = false;\n    for (var i = 0; i < allH3s.length; i++) {\n      var h3 = allH3s[i];\n      var prev = h3.previousElementSibling;\n      if (prev) {\n        if (prev.tagName === 'H2') {\n          var prevId = prev.getAttribute('id');\n          if (prevId) {\n            if (prevId.indexOf('faq-') === 0) {\n              inFaq = true;\n            } else {\n              inFaq = false;\n            }\n          }\n        }\n      }\n      if (inFaq) {\n        initToggle(h3);\n      }\n    }\n    function initToggle(h3) {\n      var answer = h3.nextElementSibling;\n      if (!answer) { return; }\n      if (answer.tagName !== 'P') { return; }\n      answer.style.display = 'none';\n      h3.style.cursor = 'pointer';\n      h3.setAttribute('tabindex', '0');\n      h3.setAttribute('aria-expanded', 'false');\n      h3.addEventListener('click', function(){\n        toggleOne(h3, answer);\n      });\n      h3.addEventListener('keydown', function(ev){\n        if (ev.key === 'Enter') { toggleOne(h3, answer); }\n        if (ev.key === ' ') { ev.preventDefault(); toggleOne(h3, answer); }\n      });\n    }\n    function toggleOne(h3, answer) {\n      var open = h3.getAttribute('aria-expanded') === 'true';\n      if (open) {\n        answer.style.display = 'none';\n        h3.setAttribute('aria-expanded', 'false');\n      } else {\n        answer.style.display = 'block';\n        h3.setAttribute('aria-expanded', 'true');\n      }\n    }\n  });\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>TL;DR The package could not be installed is only a headline. The line under it names the check that failed. In our WordPress 7.1.4 lab, a plugin zip installed only when its main file sat inside one folder and nothing else sat beside that folder. Open the zip, fix its top level, and upload again. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1558,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[8],"tags":[346,356,354,113,355,357,117,358],"class_list":["post-1557","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wordpress","tag-cpanel-file-manager","tag-no-valid-plugins-were-found","tag-the-package-could-not-be-installed","tag-wordpress-errors","tag-wordpress-plugin-upload","tag-wordpress-theme-upload","tag-wordpress-troubleshooting","tag-zip-file"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"Seeing &quot;The Package Could Not Be Installed?&quot; Read the second line, decode 23 lab-tested zip layouts, and fix it. Tested on WordPress 7.1.4.\" \/>\n\t<meta name=\"robots\" content=\"max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n\t<meta name=\"author\" content=\"Matt Chrust\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.ahosting.net\/blog\/the-package-could-not-be-installed\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.5\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"AHosting Blog | WordPress Hosting Tips &amp; Guides\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"The Package Could Not Be Installed: Read the 2nd Line | AHosting\" \/>\n\t\t<meta property=\"og:description\" content=\"Seeing &quot;The Package Could Not Be Installed?&quot; Read the second line, decode 23 lab-tested zip layouts, and fix it. 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