Title: Installing plugin error Last modified: July 20, 2018 --- # Installing plugin error * [exquisitor](https://wordpress.org/support/users/exquisitor/) * (@exquisitor) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/) * I’m have an issue while installing this plugin Fatal error: Uncaught Error: Call to undefined function simplexml_load_file() in /data/www/essaytopwriters. com/wp-content/plugins/types/vendor/otgs/installer/includes/class-wp-installer. php:762 Stack trace: #0 /data/www/essaytopwriters.com/wp-content/plugins/types/ vendor/otgs/installer/includes/class-wp-installer.php(70): WP_Installer->load_repositories_list()# 1 /data/www/essaytopwriters.com/wp-content/plugins/types/vendor/otgs/installer/ includes/class-wp-installer.php(40): WP_Installer->__construct() #2 /data/www/ essaytopwriters.com/wp-content/plugins/types/vendor/otgs/installer/includes/functions- core.php(3): WP_Installer::instance() #3 /data/www/essaytopwriters.com/wp-content/ plugins/types/vendor/otgs/installer/installer.php(16): WP_Installer() #4 /data/ www/essaytopwriters.com/wp-content/plugins/types/vendor/otgs/installer/loader. php(123): include_once(‘/var/ in /data/www/essaytopwriters.com/wp-content/plugins/ types/vendor/otgs/installer/includes/class-wp-installer.php on line 762 * Host with PHP7 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Finstalling-plugin-error-3%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 9 replies - 1 through 9 (of 9 total) * Anonymous User 14808221 * (@anonymized-14808221) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10513929) * I get no such error when I install the latest Toolset Types 2.2.23 from this link: [https://wordpress.org/plugins/types/](https://wordpress.org/plugins/types/) * Can you try again to download it? If this issue persist, I will need the steps to replicate it. * 1. What other plugins do I need to replicate this? 2. With what theme does it happen? 3. Others * Thanks! * Thread Starter [exquisitor](https://wordpress.org/support/users/exquisitor/) * (@exquisitor) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10526038) * Other plugins: advanced custom fields breadcrumbs navxt theme check * Theme custom written * Anonymous User 14808221 * (@anonymized-14808221) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10526076) * Strange. * I think this is due to the Custom Theme – probably it does not declare a proper theme name or Similar. There where similar issues in past, where if the theme( or a plugin) missed to pass a default information it failed with a similar error. * That problem however is not in Types, it would be fixed in the theme or plugin passing the wring name (and we added checks to avoid the failure just in case) * So this should not happen – and I cannot replicate this, as with custom themes it’s complex, they are all different. * Can you replicate this on a clean install? What of those plugins or theme makes the issue happen? * Thread Starter [exquisitor](https://wordpress.org/support/users/exquisitor/) * (@exquisitor) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10526163) * It based on Underscores base theme. For now it’s work fine with archives version of your plugin from 2016 year. * Anonymous User 14808221 * (@anonymized-14808221) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10528675) * I will need some more details here. * I cannot replicate an issue based on a possible conflict with a custom theme. * Please read my reply here: [https://wordpress.org/support/topic/installing-plugin-error-3/#post-10526076](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10526076) * > Can you replicate this on a clean install? > What of those plugins or theme > makes the issue happen? * When we can narrow down what part is creating the issue, we may even be able to narrow down the exact feature that provokes it, later. * Thanks. * [awpu](https://wordpress.org/support/users/awpu/) * (@awpu) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10531286) * I just tried installing on a clean install and had the same issue. The solution was to install php-xml before activating plugin. * Anonymous User 14808221 * (@anonymized-14808221) * [7 years, 10 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10532203) * I understand, then this was a server issue. * I think that is enabled by default usually? Please as well have a look here for other required modules and libraries: [https://toolset.com/toolset-requirements/](https://toolset.com/toolset-requirements/) * [Richard](https://wordpress.org/support/users/rgenck/) * (@rgenck) * [7 years, 9 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10594852) * I came across this problem as well, it was a server configuration issue. * To correct, my server manager installed PHP-xml. PHP-xml needs to be configured to the same php version your site is running on, the exact same version. When we first installed it it was running on PHP 7.0, but the site was on 7.1. * Now it seems to be running well, hope this helps someone! * Anonymous User 14808221 * (@anonymized-14808221) * [7 years, 7 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10810050) * Sounds like spam * Please be more precise and open your own thread [@odimexy](https://wordpress.org/support/users/odimexy/) if you want my help. * Thanks Viewing 9 replies - 1 through 9 (of 9 total) The topic ‘Installing plugin error’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/types_ced1d3.svg) * [Toolset Types - Custom Post Types, Custom Fields and Taxonomies](https://wordpress.org/plugins/types/) * [Frequently Asked Questions](https://wordpress.org/plugins/types/#faq) * [Support Threads](https://wordpress.org/support/plugin/types/) * [Active Topics](https://wordpress.org/support/plugin/types/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/types/unresolved/) * [Reviews](https://wordpress.org/support/plugin/types/reviews/) ## Tags * [installing](https://wordpress.org/support/topic-tag/installing/) * 9 replies * 4 participants * Last reply from: Anonymous User 14808221 * Last activity: [7 years, 7 months ago](https://wordpress.org/support/topic/installing-plugin-error-3/#post-10810050) * Status: not resolved