Title: Plugin Activation Error
Last modified: January 1, 2017

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# Plugin Activation Error

 *  Resolved [Chad](https://wordpress.org/support/users/aeboi80/)
 * (@aeboi80)
 * [9 years, 5 months ago](https://wordpress.org/support/topic/plugin-activation-error-17/)
 * Running a brand new fresh install of WP 4.7 – No plugins installed except for
   WordPress Zero Spam ver 3.0.6. Running Twenty Seventeen theme, no posts or pages
   changed. All stock/default install and I when I activated WordPress Zero Spam,
   I received an error:
 * The plugin generated 243 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 should note that I am running SSL as well. Site default URL is [https://www.mydomain.com](https://www.mydomain.com)
    -  This topic was modified 9 years, 5 months ago by [Chad](https://wordpress.org/support/users/aeboi80/).
      Reason: spelling error

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Anonymous User 5731870
 * (@anonymized-5731870)
 * [9 years, 5 months ago](https://wordpress.org/support/topic/plugin-activation-error-17/#post-8626191)
 * Same error message for me, but my installation is old and there are some other
   plugins installed. I run my website under HTTPS, too, and this could be the reason
   for the error.
 *  [Cyndi](https://wordpress.org/support/users/cynderella/)
 * (@cynderella)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/plugin-activation-error-17/#post-8643772)
 * Same issue.
 *  [B](https://wordpress.org/support/users/bridgetdesigns/)
 * (@bridgetdesigns)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/plugin-activation-error-17/#post-8678294)
 * I have the same issue on a new up to date install.
 * The plugin generated 266 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.
    -  This reply was modified 9 years, 4 months ago by [B](https://wordpress.org/support/users/bridgetdesigns/).

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Plugin Activation Error’ is closed to new replies.

 * ![](https://ps.w.org/zero-spam/assets/icon.svg?rev=2343080)
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## Tags

 * [activation error](https://wordpress.org/support/topic-tag/activation-error/)

 * 3 replies
 * 4 participants
 * Last reply from: [B](https://wordpress.org/support/users/bridgetdesigns/)
 * Last activity: [9 years, 4 months ago](https://wordpress.org/support/topic/plugin-activation-error-17/#post-8678294)
 * Status: resolved