Title: Fatal Error When Installing
Last modified: August 22, 2016

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# Fatal Error When Installing

 *  Resolved [innuvo](https://wordpress.org/support/users/innuvo/)
 * (@innuvo)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-8/)
 * I keep getting this error when installing this plugin
 *     ```
       Plugin could not be activated because it triggered a fatal error.
   
        Fatal error: Call to undefined function WC() in ...domain/public_html/wp-content/plugins/woocommerce-trusted-shops/includes/class-wc-ts-install.php on line 95
       ```
   
 * [https://wordpress.org/plugins/woocommerce-trusted-shops/](https://wordpress.org/plugins/woocommerce-trusted-shops/)

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

 *  Plugin Author [vendidero](https://wordpress.org/support/users/vendidero/)
 * (@vendidero)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-8/#post-5930339)
 * Hi,
 * well please read the manual.. You need WooCommerce installed to use this Plugin..
 *  Thread Starter [innuvo](https://wordpress.org/support/users/innuvo/)
 * (@innuvo)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-when-installing-8/#post-5930340)
 * Hi [@vendidero](https://wordpress.org/support/users/vendidero/)
 * Woocommerce is installed, and has been for a couple of years as this is an ecommerce
   site
 *  [ninjinf](https://wordpress.org/support/users/ninjinf/)
 * (@ninjinf)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-when-installing-8/#post-5930392)
 * I have the same problem, with Woocommerce installed.

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

The topic ‘Fatal Error When Installing’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/woocommerce-trusted-shops_fff19f.
   svg)
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 * 3 replies
 * 3 participants
 * Last reply from: [ninjinf](https://wordpress.org/support/users/ninjinf/)
 * Last activity: [11 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-when-installing-8/#post-5930392)
 * Status: resolved