Greetings I was upgrading our MediaWiki to add Blue Spice (Free) and ran into a Fatal error that I cant seem to fix, any suggestions... (i'm new to PHP, Apache etc.)
OS: Ubuntu-18.04.1
PHP 7.2
MySQL DB
Error Details:
Fatal error: Uncaught RuntimeException: The configuration setting 'wgUserMergeProtectedGroups' was already set by MediaWiki core or another extension, and cannot be set again by BlueSpiceUserMergeConnector. in /var/www/html/includes/registration/ExtensionProcessor.php:511 Stack trace: #0 /var/www/html/includes/registration/ExtensionProcessor.php(469): ExtensionProcessor->addConfigGlobal('wgUserMergeProt...', Array, 'BlueSpiceUserMe...') #1 /var/www/html/includes/registration/ExtensionProcessor.php(219): ExtensionProcessor->extractConfig1(Array) #2 /var/www/html/includes/registration/ExtensionRegistry.php(264): ExtensionProcessor->extractInfo('/var/www/html/e...', Array, 1) #3 /var/www/html/includes/registration/ExtensionRegistry.php(158): ExtensionRegistry->readFromQueue(Array) #4 /var/www/html/includes/Setup.php(116): ExtensionRegistry->loadFromQueue() #5 /var/www/html/includes/WebStart.php(88): require_once('/var/www/html/i...') #6 /var/www/html/index.php(39): require('/var/www/html/i...') #7 {main} thrown in /var/www/html/includes/registration/ExtensionProcessor.php on line 511