Title: Cannot be installed
Last modified: September 13, 2023

---

# Cannot be installed

 *  [freechelmi](https://wordpress.org/support/users/freechelmi/)
 * (@freechelmi)
 * [2 years, 8 months ago](https://wordpress.org/support/topic/cannot-be-installed-4/)
 * WP 6.1
 * Fatal error: Uncaught Error: Class “A3Rev\WCCompare\Hook_Backbone” not found 
   in /var/www/html/wp-content/plugins/woocommerce-compare-products/compare_products.
   php:68 Stack trace: #0 /var/www/html/wp-admin/includes/plugin.php(2314): include_once()#
   1 /var/www/html/wp-admin/plugins.php(192): plugin_sandbox_scrape(‘woocommerce-
   com…’) #2 {main} thrown in /var/www/html/wp-content/plugins/woocommerce-compare-
   products/compare_products.php on line 68

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Nguyen Tuan](https://wordpress.org/support/users/nguyencongtuan/)
 * (@nguyencongtuan)
 * [2 years, 8 months ago](https://wordpress.org/support/topic/cannot-be-installed-4/#post-17049452)
 * Hi freechelmi,
   Thanks for report that issue, we just release new version 3.1.1
   include that fixed
 * > 
   > = 3.1.1 – 2023/09/14 =* This maintenance release has a fatal error fix that
   > came in with the 3.1 release* Fix – Remove call A3Rev\WCCompare\Hook_Backbone
   > classname that is not included into the free version of the plugin* Props –
   > WordPress user [@freechelmi](https://wordpress.org/support/users/freechelmi/)
   > for reporting the bug.

Viewing 1 replies (of 1 total)

The topic ‘Cannot be installed’ is closed to new replies.

 * ![](https://ps.w.org/woocommerce-compare-products/assets/icon.svg?rev=2083509)
 * [Compare Products for WooCommerce](https://wordpress.org/plugins/woocommerce-compare-products/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-compare-products/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/woocommerce-compare-products/)
 * [Active Topics](https://wordpress.org/support/plugin/woocommerce-compare-products/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-compare-products/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woocommerce-compare-products/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Nguyen Tuan](https://wordpress.org/support/users/nguyencongtuan/)
 * Last activity: [2 years, 8 months ago](https://wordpress.org/support/topic/cannot-be-installed-4/#post-17049452)