Title: Error: Cannot declare class MTM_Builder
Last modified: July 10, 2019

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# Error: Cannot declare class MTM_Builder

 *  [Anita C](https://wordpress.org/support/users/mymothersdaughter/)
 * (@mymothersdaughter)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/error-cannot-declare-class-mtm_builder/)
 * Hi, we just received a SiteGround email notification:
 * > Error Details
   >  ============= An error of type E_ERROR was caused in line 5 
   > of the file /home/XXXXXX/public_html/wp-content/plugins/meta-tag-manager/mtm-
   > builder.php. Error message: Cannot declare class MTM_Builder, because the name
   > is already in use
 * WordPress 5.2.2
    Genesis Framework Child Theme: Mai LifeStyle Pro
 * Thanks in advance,
 * Anita

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

 *  Plugin Author [Marcus (aka @msykes)](https://wordpress.org/support/users/netweblogic/)
 * (@netweblogic)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/error-cannot-declare-class-mtm_builder/#post-11718519)
 * Hi Anita, this basically means you either have loaded our plugin twice somehow,
   or your theme or another plugin has a class with the same name (meaning there’s
   a conflict)
 * You can test easily for a conflict by trying my [WP Safe Mode plugin](https://wordpress.org/plugins/wp-safe-mode/)
   to test MTM with other plugins and theme disabled only for yourself.
 *  Thread Starter [Anita C](https://wordpress.org/support/users/mymothersdaughter/)
 * (@mymothersdaughter)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/error-cannot-declare-class-mtm_builder/#post-11718533)
 * Thanks for replying back so quickly [@netweblogic](https://wordpress.org/support/users/netweblogic/),
   I will go try that now.

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

The topic ‘Error: Cannot declare class MTM_Builder’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [Anita C](https://wordpress.org/support/users/mymothersdaughter/)
 * Last activity: [6 years, 11 months ago](https://wordpress.org/support/topic/error-cannot-declare-class-mtm_builder/#post-11718533)
 * Status: not resolved