Title: Plugin conflict
Last modified: November 17, 2017

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# Plugin conflict

 *  Resolved [mfhcom](https://wordpress.org/support/users/mfhcom/)
 * (@mfhcom)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-conflict-179/)
 * Yoast is conflicting with another plugin (showcaseidx), we get error messages
   similar to this every time we update a page with both plugins active.
 * “Warning: Cannot modify header information – headers already sent by (output 
   started at /staging/1/wp-content/plugins/showcase-idx/2/widgets.php:62) in /staging/
   1/wp-content/themes/Divi/includes/builder/functions.php”
 * We’ve narrowed this down to yoast because the errors only appear when using yoast,
   they stop when we deactivate yoast, no other conflicts. This issue has come up
   before on previous yoast updates as well and the showcaseidx plugin developer
   has said they have no known issues with any other plugins. Never had these errors
   with all-in-one seo, only since switching to yoast.

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

 *  [Md Mazedul Islam Khan](https://wordpress.org/support/users/mazedulislamkhan/)
 * (@mazedulislamkhan)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-conflict-179/#post-9692937)
 * We understand that the issue only occurs when the Yoast SEO plugin is active.
   However, the error is coming from the Divi theme `/builder/functions.php` file.
   Did you reach out the Divi theme developer yet? If not, we suggest you please
   speak to the Divi theme developer for assistance first as the error is coming
   from the theme file which causing the issue with the `showcase-idx` plugin.
 *  Plugin Support [amboutwe](https://wordpress.org/support/users/amboutwe/)
 * (@amboutwe)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-conflict-179/#post-9745732)
 * This thread has been marked as resolved due to lack of activity.
 * You’re always welcome to open a new topic. Please read [this post](https://wordpress.org/support/topic/read-this-before-your-post/)
   before [open a new request](https://wordpress.org/support/plugin/wordpress-seo#new-post).
 * Thanks for understanding!

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

The topic ‘Plugin conflict’ is closed to new replies.

 * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908)
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 * 2 replies
 * 3 participants
 * Last reply from: [amboutwe](https://wordpress.org/support/users/amboutwe/)
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-conflict-179/#post-9745732)
 * Status: resolved