Title: Plugin does not support for PHP 7.4 Last modified: October 18, 2023 --- # Plugin does not support for PHP 7.4 * Resolved [ravinawebential](https://wordpress.org/support/users/ravinawebential/) * (@ravinawebential) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/) * I tried to install this plugin and it throws error while I try to activate it with PHP 7.4 , but worked when I switched from PHP 7.4 to PHP 7.2 Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Support [tomasz_bednarek](https://wordpress.org/support/users/tomasz_bednarek/) * (@tomasz_bednarek) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17132560) * Hi [@ravinawebential](https://wordpress.org/support/users/ravinawebential/) * thank you for your message. Could you send us an error message/ notice so that we can check it. It could be some missing libraries for example in PHP 7.2 that might have caused the error you’d encountered. * Best, * Thread Starter [ravinawebential](https://wordpress.org/support/users/ravinawebential/) * (@ravinawebential) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17132585) * Hi [tomasz_bednarek](https://wordpress.org/support/users/tomasz_bednarek/) * Thank you for your reply. The error given below displays when I try to activate the plugin. * **Plugin could not be activated because it triggered a** **fatal error**. * Plugin Support [tomasz_bednarek](https://wordpress.org/support/users/tomasz_bednarek/) * (@tomasz_bednarek) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17132803) * Hi [@ravinawebential](https://wordpress.org/support/users/ravinawebential/) * I see. If you’re using WooCommerce go to WooCommerce->Status->Logs. With WordPress alone, you can find error logs in the debug.log file in wp-content on the server/ hosting you have your WordPress installed. * You should find the information about the error/notice there. Please send it back if you find it. * Best, * Thread Starter [ravinawebential](https://wordpress.org/support/users/ravinawebential/) * (@ravinawebential) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17132833) * Hi [@tomasz_bednarek](https://wordpress.org/support/users/tomasz_bednarek/) * This is the error I found : * 2023-10-18T04:03:27+00:00 CRITICAL Uncaught WC_Data_Exception: Invalid or duplicated SKU. in G:\laragon\www\wp-ajaxify\wp-content\plugins\woocommerce\includes\abstracts\ abstract-wc-data.php:900 Stack trace: #0 G:\laragon\www\wp-ajaxify\wp-content\ plugins\woocommerce\includes\abstracts\abstract-wc-product.php(829): WC_Data- >error(‘product_invalid…’, ‘Invalid or dupl…’, 400, Array) #1 G:\laragon\www\ wp-ajaxify\wp-content\plugins\programattically_add_woocomm_prod\class_quadlayers_add_product. php(39): WC_Product->set_sku(‘wzrd-hat’) #2 G:\laragon\www\wp-ajaxify\wp-includes\ class-wp-hook.php(312): QuadLayers_class->quadlayers_add_product(‘flexible-invoic…’)# 3 G:\laragon\www\wp-ajaxify\wp-includes\class-wp-hook.php(334): WP_Hook->apply_filters( NULL, Array) #4 G:\laragon\www\wp-ajaxify\wp-includes\plugin.php(517): WP_Hook- >do_action(Array) #5 G:\laragon\www\wp-ajaxify\wp-admin\includes\plugin.php(720): do_action(‘activated_plugi…’, ‘flexible-invoic…’, false) #6 G:\laragon\www\wp- ajaxify\wp-admin\plugins.php(58): activate_plugin(‘flexible-i in G:\laragon\www\ wp-ajaxify\wp-content\plugins\woocommerce\includes\abstracts\abstract-wc-data. php on line 900 2023-10-18T04:05:36+00:00 CRITICAL syntax error, unexpected ‘)’ in G:\laragon\www\wp-ajaxify\wp-content\plugins\seo-by-rank-math\includes\modules\ sitemap\providers\class-taxonomy.php on line 150 2023-10-18T04:07:49+00:00 CRITICAL syntax error, unexpected ‘)’ in G:\laragon\www\wp-ajaxify\wp-content\plugins\ seo-by-rank-math\includes\modules\sitemap\providers\class-taxonomy.php on line 150 2023-10-18T09:57:50+00:00 CRITICAL syntax error, unexpected ‘)’ in G:\laragon\ www\wp-ajaxify\wp-content\plugins\woocommerce\includes\wccom-site\rest-api\endpoints\ class-wc-rest-wccom-site-ssr-controller.php on line 53 2023-10-18T10:10:17+00: 00 CRITICAL Uncaught WC_Data_Exception: Invalid or duplicated SKU. in G:\laragon\ www\wp-ajaxify\wp-content\plugins\woocommerce\includes\abstracts\abstract-wc- data.php:900 Stack trace: #0 G:\laragon\www\wp-ajaxify\wp-content\plugins\woocommerce\ includes\abstracts\abstract-wc-product.php(829): WC_Data->error(‘product_invalid…’,‘ Invalid or dupl…’, 400, Array) #1 G:\laragon\www\wp-ajaxify\wp-content\plugins\ programattically_add_woocomm_prod\class_quadlayers_add_product.php(39): WC_Product- >set_sku(‘wzrd-hat’) #2 G:\laragon\www\wp-ajaxify\wp-includes\class-wp-hook.php( 312): QuadLayers_class->quadlayers_add_product(‘flexible-invoic…’) #3 G:\laragon\ www\wp-ajaxify\wp-includes\class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #4 G:\laragon\www\wp-ajaxify\wp-includes\plugin.php(517): WP_Hook->do_action( Array) #5 G:\laragon\www\wp-ajaxify\wp-admin\includes\plugin.php(720): do_action(‘ activated_plugi…’, ‘flexible-invoic…’, false) #6 G:\laragon\www\wp-ajaxify\wp- admin\plugins.php(58): activate_plugin(‘flexible-i in G:\laragon\www\wp-ajaxify\ wp-content\plugins\woocommerce\includes\abstracts\abstract-wc-data.php on line 900 2023-10-18T10:34:48+00:00 CRITICAL Uncaught WC_Data_Exception: Invalid or duplicated SKU. in G:\laragon\www\wp-ajaxify\wp-content\plugins\woocommerce\includes\ abstracts\abstract-wc-data.php:900 Stack trace: #0 G:\laragon\www\wp-ajaxify\ wp-content\plugins\woocommerce\includes\abstracts\abstract-wc-product.php(829): WC_Data->error(‘product_invalid…’, ‘Invalid or dupl…’, 400, Array) #1 G:\laragon\ www\wp-ajaxify\wp-content\plugins\programattically_add_woocomm_prod\class_quadlayers_add_product. php(39): WC_Product->set_sku(‘wzrd-hat’) #2 G:\laragon\www\wp-ajaxify\wp-includes\ class-wp-hook.php(312): QuadLayers_class->quadlayers_add_product(‘phone-orders- fo…’) #3 G:\laragon\www\wp-ajaxify\wp-includes\class-wp-hook.php(334): WP_Hook- >apply_filters(NULL, Array) #4 G:\laragon\www\wp-ajaxify\wp-includes\plugin.php( 517): WP_Hook->do_action(Array) #5 G:\laragon\www\wp-ajaxify\wp-admin\includes\ plugin.php(720): do_action(‘activated_plugi…’, ‘phone-orders-fo…’, false) #6 G:\laragon\www\wp-ajaxify\wp-admin\plugins.php(58): activate_plugin(‘phone-orde in G:\laragon\www\wp-ajaxify\wp-content\plugins\woocommerce\includes\abstracts\ abstract-wc-data.php on line 900 * Plugin Support [tomasz_bednarek](https://wordpress.org/support/users/tomasz_bednarek/) * (@tomasz_bednarek) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17133000) * Thank you [@ravinawebential](https://wordpress.org/support/users/ravinawebential/) * The logs point that the error is caused by WooCommerce itself and will affect all plugins (WC_Data_Exception: Invalid or duplicated SKU. in G:\laragon\www\ wp-ajaxify\wp-content\plugins\woocommerce\includes\abstracts\abstract-wc-data. php:900) for example the Phone Orders plugin. There is also wrong syntax (parenthesis) in the code of the Seo by rank plugin. * Try to install a fresh WooCommerce and these 2 plugins. That should help in running WooCommerce entirely and proper plugin activations (including Flexible Invoices). * Let me know if that helped. * Best, * Plugin Support [Tomasz WP Desk](https://wordpress.org/support/users/tomaszwp/) * (@tomaszwp) * [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17160129) * I am marking this topic as resolved as we have not received any new replies. Please let us know if you need our help again. Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Plugin does not support for PHP 7.4’ is closed to new replies. * ![](https://ps.w.org/flexible-invoices/assets/icon-256x256.gif?rev=2537243) * [Flexible PDF Invoices for WooCommerce & WordPress](https://wordpress.org/plugins/flexible-invoices/) * [Frequently Asked Questions](https://wordpress.org/plugins/flexible-invoices/#faq) * [Support Threads](https://wordpress.org/support/plugin/flexible-invoices/) * [Active Topics](https://wordpress.org/support/plugin/flexible-invoices/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/flexible-invoices/unresolved/) * [Reviews](https://wordpress.org/support/plugin/flexible-invoices/reviews/) * 6 replies * 3 participants * Last reply from: [Tomasz WP Desk](https://wordpress.org/support/users/tomaszwp/) * Last activity: [2 years, 7 months ago](https://wordpress.org/support/topic/plugin-does-not-support-for-php-7-4/#post-17160129) * Status: resolved