Support » Fixing WordPress » Fatal Error from Dashboard

  • I replied to another post about this very thing, but I want to make sure it’s easy to find as well…

    I just got this error when trying to upgrade via Dashboard (hosted by MediaTemple):

    Fatal error: Cannot redeclare class Plugin_Upgrader in .../wp-admin/includes/class-wp-upgrader.php on line 632

    Is there some way to get around this to get the installation to work? A note: I am using the default theme to which I added a little CSS.

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  • esmi


    Forum Moderator

    – switching to the default Twenty Twelve theme (if you’re not using it already) by renaming your current theme’s folder inside wp-content/themes and adding “-old” to the end of the folder name using FTP or whatever file management application your host provides.

    resetting the plugins folder by FTP or phpMyAdmin.

    – re-uploading all files & folders – except the wp-content folder – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.

    – running the upgrade manually via wp-admin/upgrade.php

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