WP 5.5 — javascript update functions not working
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After upgrading to WP 5.5 – I am having difficulty with some (but not all) update functions for plugins.
I cannot update plugins from the Installed Plugins table in the admin dashboard with the “update now” link – or use the “Install Update Now” button in “view details” popup when invoked from Installed Plugins Table.
This looks like a javascript problem — from the console, I see errors reported in wp-auth-check.min.js
updates.min.jsI also have a similar problem if I try to initiate a theme update from the Appearance > Themes interface, but not when using the table from the main updates interface.
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Try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.
If that does not resolve the issue, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins).
If that doesn’t work, try downloading WordPress again, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), and delete then replace your copies of everything on the server except the wp-config.php file and the /wp-content/ directory with fresh copies from the download. This will effectively replace all of your core files without damaging your content and settings.
Some uploaders tend to be unreliable when overwriting files, so don’t forget to delete the original files before replacing them.
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