Title: Fatal error installing add-on plugin
Last modified: August 21, 2016

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# Fatal error installing add-on plugin

 *  [Jacob N. Breetvelt](https://wordpress.org/support/users/opajaap/)
 * (@opajaap)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-installing-add-on-plugin/)
 * Fatal error: Class ‘TGM_Bulk_Installer’ not found in /mnt/webf/d1/15/51893315/
   htdocs/opajaap/beta/wp-content/themes/responsive/core/includes/classes/class-
   tgm-plugin-activation.php on line 1485

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Christine Rondeau](https://wordpress.org/support/users/crondeau/)
 * (@crondeau)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-installing-add-on-plugin/#post-4086369)
 * Can you provide a bit more info? What plugin were you trying to install?
 *  [Christine Rondeau](https://wordpress.org/support/users/crondeau/)
 * (@crondeau)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-installing-add-on-plugin/#post-4086370)
 * Never mind.. i just downloaded it as well and I see what these add-ons are. Duh…
   
   These worked fine for me. Can you make sure that you are running the latest version
   of WordPress and perhaps deactivate all other plugins?
 * You may also want to re-install the theme.
 * Sorry about my mistake earlier.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Fatal error installing add-on plugin’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [Christine Rondeau](https://wordpress.org/support/users/crondeau/)
 * Last activity: [12 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-installing-add-on-plugin/#post-4086370)
 * Status: not resolved