Title: Error when activating
Last modified: September 1, 2016

---

# Error when activating

 *  Resolved [apremierdj](https://wordpress.org/support/users/apremierdj/)
 * (@apremierdj)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-23/)
 * I receive this code when trying to activate: The plugin generated 174 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.
 * I have deactivated all plugins
 * [https://wordpress.org/plugins/per-page-add-to/](https://wordpress.org/plugins/per-page-add-to/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Erikvona](https://wordpress.org/support/users/erikvona/)
 * (@erikvona)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-23/#post-7654235)
 * I need a more specific error description to try and replicate this issue. Obviously,
   this is a bug, but I can’t be sure of the cause unless I have a detailed error
   message or a way to replicate it.
 * It would be helpful if you could turn on WP_DEBUG, and give me the error message(
   see [this codex page](https://codex.wordpress.org/WP_DEBUG) for more information
   on WP_DEBUG)
 *  [JustBruno](https://wordpress.org/support/users/justbruno/)
 * (@justbruno)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/error-when-activating-23/#post-7654301)
 * Hi,
    I just got the same message but mine said: The plugin generated 181 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.
 * I turned on debug and debug display and got no error output.
 *  Plugin Author [Erikvona](https://wordpress.org/support/users/erikvona/)
 * (@erikvona)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/error-when-activating-23/#post-8359102)
 * Sorry for replying so late. I don’t believe I can be of aid, since as far as 
   I know, this is not possible. The headers already sent issue can only occur if
   a PHP error occurs, and a PHP error should show up when WP_DEBUG is on.
 * I am at a loss. Perhaps you could send me the HTML source of one of the “headers
   already sent” page?
 *  Plugin Author [Erikvona](https://wordpress.org/support/users/erikvona/)
 * (@erikvona)
 * [9 years, 5 months ago](https://wordpress.org/support/topic/error-when-activating-23/#post-8539819)
 * I’ve done a thorough review, and identified and fixed the underlying error. Some
   old code for the storing settings in a file functionality was partly removed,
   and because of that, the remainder of unused code was generating errors.
 * If you encountered these errors, they were of no consequence (since the code 
   didn’t run and wasn’t supposed to).
 * Resolved in the 1.4 version

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Error when activating’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/per-page-add-to.svg)
 * [Per page add to head](https://wordpress.org/plugins/per-page-add-to/)
 * [Support Threads](https://wordpress.org/support/plugin/per-page-add-to/)
 * [Active Topics](https://wordpress.org/support/plugin/per-page-add-to/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/per-page-add-to/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/per-page-add-to/reviews/)

 * 4 replies
 * 3 participants
 * Last reply from: [Erikvona](https://wordpress.org/support/users/erikvona/)
 * Last activity: [9 years, 5 months ago](https://wordpress.org/support/topic/error-when-activating-23/#post-8539819)
 * Status: resolved