Title: E_COMPILE_ERROR
Last modified: February 1, 2022

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# E_COMPILE_ERROR

 *  Resolved [mkummer](https://wordpress.org/support/users/mkummer/)
 * (@mkummer)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/e_compile_error-41/)
 * Hi guys!
 * I’m getting the following error when I try to activate UB 2.4.11:
 * An error of type E_COMPILE_ERROR was caused in line 1407 of the file /www/wp-
   content/plugins/ultimate-blocks/src/simple_html_dom.php. Error message: Cannot
   declare class simple_html_dom, because the name is already in use.
 * WordPress version 5.9
    Current theme: GeneratePress (version 3.1.2) Current plugin:
   Ultimate Blocks (version 2.4.11) PHP version 7.4.27
 * Any idea what other plugin uses the same class and how this can be fixed?
 * Thanks,
    Michael
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fe_compile_error-41%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  Plugin Contributor [Alexis Pandaan](https://wordpress.org/support/users/alexius08/)
 * (@alexius08)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/e_compile_error-41/#post-15318423)
 * Hi [@mkummer](https://wordpress.org/support/users/mkummer/)! Have you tried deactivating
   your other plugins one by one to find the source of the conflict? We’ll resolve
   this naming conflict in the future version of the plugin to ensure that our plugin
   would be able to run alongside the one that’s causing the conflict.
 *  Thread Starter [mkummer](https://wordpress.org/support/users/mkummer/)
 * (@mkummer)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/e_compile_error-41/#post-15319313)
 * Yes, I found the (other) offending plugin, thanks!

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

The topic ‘E_COMPILE_ERROR’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [mkummer](https://wordpress.org/support/users/mkummer/)
 * Last activity: [4 years, 3 months ago](https://wordpress.org/support/topic/e_compile_error-41/#post-15319313)
 * Status: resolved