Error on installing


I installed using the instructions, but got this error and could not install the plugin:

Fatal error: Cannot redeclare class wpmudev_notifications_output in /nas/wp/www/sites/testpilot/wp-content/plugins/wpmudev-updates/notifications.php on line 3



  • Philip John
    • DEV MAN’s Apprentice

    Hi Martin,

    It looks like you’ve unzipped the contents of the wpmudev-updates folder into /mu-plugins

    Take a look at all the files in /wp-content/plugins/wpmudev-updates/

    You’ll see those files in mu-plugins – remove them from there and it’ll fix the issue.


  • Mason
    • DEV MAN’s Sidekick


    As we haven’t heard back from you we’re going to assume the problem was sorted out and mark this ticket as resolved.

    If it wasn’t resolved, or you have any more questions related to this thread please feel free to post them below and tick the ‘Mark as Not Resolved (re-open)’ box below the post area (or else we’ll miss it!)

    Otherwise, thanks for using the forums, and for being a member of WPMU DEV, it’s a pleasure to help you out and we look forward to being of assistance in the future.


Thank NAME, for their help.

Let NAME know exactly why they deserved these points.

Gift a custom amount of points.