Title: Media File Manager Error
Last modified: August 21, 2016

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# Media File Manager Error

 *  [MHJP](https://wordpress.org/support/users/mhjp/)
 * (@mhjp)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/media-file-manager-error/)
 * Hi… I am unable to delete ANY WordPress plugins. I can add and update, but not
   delete them. Using WP_DEBUG, I found the following error being generated whenever
   I try to delete a plugin:
 * [19-Aug-2013 17:55:18 UTC] PHP Notice: Use of undefined constant MrlMediaSelector–
   assumed ‘MrlMediaSelector’ in /home/fm3mobil/public_html/harmonicfundservices/
   wp-content/plugins/media-file-manager/media-selector.php on line 391
 * I’ve been using this plugin for some time. Not sure what has caused it fail. 
   We have recently switched to an addon domain. I have deactivated the media-file-
   manager. But still get the same error when trying to delete plugins.
 * Any advise on how to fix? thanx
 * [http://wordpress.org/plugins/media-file-manager/](http://wordpress.org/plugins/media-file-manager/)

Viewing 8 replies - 1 through 8 (of 8 total)

 *  Plugin Author [aueda](https://wordpress.org/support/users/aueda/)
 * (@aueda)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4045962)
 * Does the following procedure work?
 * (1)Delete the plugin directory (wp-content/plugins/media-file-manager) via FTP.
 * (2)Download the test version of the media-file-manager plugin and install it:
   
   [http://tempspace.net/plugins/media-file-manager_test_130819.zip](http://tempspace.net/plugins/media-file-manager_test_130819.zip)
 *  Thread Starter [MHJP](https://wordpress.org/support/users/mhjp/)
 * (@mhjp)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4045977)
 * No, unfortunately get the same error:
 * [19-Aug-2013 17:56:19 UTC] PHP Notice: Use of undefined constant MrlMediaSelector–
   assumed ‘MrlMediaSelector’ in /home/fm3mobil/public_html/harmonicfundservices/
   wp-content/plugins/media-file-manager/media-selector.php on line 391
 *  Plugin Author [aueda](https://wordpress.org/support/users/aueda/)
 * (@aueda)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046027)
 * Can you delete plugins after deleting media-file-manager via ftp and reloading
   plugin page?
 *  Thread Starter [MHJP](https://wordpress.org/support/users/mhjp/)
 * (@mhjp)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046066)
 * Oddly, I still cannot delete plugins even after removing Media-file Manager (
   and before reloading). But it still gives the same error pointing to MrlMediaSelector.
   And the situation remains the same after reloading the plug-in. So weird!
 *  [Kenny](https://wordpress.org/support/users/gapdev/)
 * (@gapdev)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046109)
 * I am also getting the same error on 2 domains but not on another. All domains
   on same Virtual Server.
 * It occurs right after activating and then shows up on each page that is displayed
   in admin.
 * Will keep investigating.
 *  [Kenny](https://wordpress.org/support/users/gapdev/)
 * (@gapdev)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046110)
 * The errors show up when debug is enabled in wp-config.php:
 * define(‘WP_DEBUG’, true);
 * define to false and the errors go away and the plug in works as it should.
 * Some of the errors that are displayed
 * Notice: Use of undefined constant MrlMediaSelector – assumed ‘MrlMediaSelector’
   in /home/www/wordpress/wp-content/plugins/media-file-manager/media-selector.php
   on line 391
 * and
 * The plugin generated 173 characters of unexpected output during activation. If
   you notice “headers already sent” messages, problems with syndication feeds or
   other issues, try deactivating or removing this plugin.
 *  Thread Starter [MHJP](https://wordpress.org/support/users/mhjp/)
 * (@mhjp)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046111)
 * YES, that it was it! Changed to:
 *     ```
       define('WP_DEBUG', false);
       define('WP_DEBUG_DISPLAY', false);
       define('WP_DEBUG_LOG', false);
       ```
   
 * Errors are gone and I can delete plug-ins.
 * Thanks Kenny. mike
 *  [niallolaoghaire](https://wordpress.org/support/users/niallolaoghaire/)
 * (@niallolaoghaire)
 * [12 years, 7 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046129)
 * I’ve had the exact same error using Media File Mgr & could not delete (but could
   activate/deactivate/upload them) changing DEBUG to false hasn’t helped Beginning
   to think it’s nothing to do with Media File Mgr

Viewing 8 replies - 1 through 8 (of 8 total)

The topic ‘Media File Manager Error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/media-file-manager.svg)
 * [Media File Manager](https://wordpress.org/plugins/media-file-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/media-file-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/media-file-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/media-file-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/media-file-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/media-file-manager/reviews/)

 * 8 replies
 * 4 participants
 * Last reply from: [niallolaoghaire](https://wordpress.org/support/users/niallolaoghaire/)
 * Last activity: [12 years, 7 months ago](https://wordpress.org/support/topic/media-file-manager-error/#post-4046129)
 * Status: not resolved