Fatal error: Uncaught Error: Interface "Composer\Plugin\PluginInterface" not found in /home/ccmobileslide/public_html/think/vendor/topthink/think-installer/src/Plugin.php:10 Stack trace: #0 {main} thrown in /home/ccmobileslide/public_html/think/vendor/topthink/think-installer/src/Plugin.php on line 10