Title: Cornerstone Interactive's Replies | WordPress.org

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# Cornerstone Interactive

  [  ](https://wordpress.org/support/users/cornerstoneinteractive/)

 *   [Profile](https://wordpress.org/support/users/cornerstoneinteractive/)
 *   [Topics Started](https://wordpress.org/support/users/cornerstoneinteractive/topics/)
 *   [Replies Created](https://wordpress.org/support/users/cornerstoneinteractive/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/cornerstoneinteractive/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/cornerstoneinteractive/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/cornerstoneinteractive/engagements/)
 *   [Favorites](https://wordpress.org/support/users/cornerstoneinteractive/favorites/)

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## Forum Replies Created

Viewing 1 replies (of 1 total)

 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[MailPress] [Plugin: MailPress] No Mailpress-addons available](https://wordpress.org/support/topic/plugin-mailpress-no-mailpress-addons-available/)
 *  [Cornerstone Interactive](https://wordpress.org/support/users/cornerstoneinteractive/)
 * (@cornerstoneinteractive)
 * [12 years, 10 months ago](https://wordpress.org/support/topic/plugin-mailpress-no-mailpress-addons-available/#post-3121446)
 * I know this was kinod of old, but since I found the problem and have a solution,
   figured I’d go ahead and post for other Googlers…
 * I am running multisite with custom content, plugin and theme directories. I too
   got the error mentioned above, yet the problem is in line 27 and 80 of /mp-includes/
   class/MP_Addons.class.php
 * if the PLUGINDIR is defined (as it is in my wp-config) then you will need to 
   change the following from:
    `$file = ABSPATH . PLUGINDIR . "/$addon_file";` to:`
   $file = PLUGINDIR . "/$addon_file";` as the ABSPATH is already implied in the
   PLUGINDIR.

Viewing 1 replies (of 1 total)