Do you guys know if this works with Mediawiki 1.37. I tried installing and got the following error:
Fatal error: Uncaught Exception: Unable to open file /var/www/html/wiki/extensions/SlackNotifications/extension.json: filemtime(): stat failed for /var/www/html/wiki/extensions/SlackNotifications/extension.json in /var/www/html/wiki/includes/registration/ExtensionRegistry.php:174 Stack trace: #0 /var/www/html/wiki/includes/GlobalFunctions.php(52): ExtensionRegistry->queue() #1 /var/www/html/wiki/LocalSettings.php(221): wfLoadExtension() #2 /var/www/html/wiki/includes/Setup.php(145): require_once('/var/www/html/w...') #3 /var/www/html/wiki/includes/WebStart.php(90): require_once('/var/www/html/w...') #4 /var/www/html/wiki/index.php(44): require('/var/www/html/w...') #5 {main} thrown in /var/www/html/wiki/includes/registration/ExtensionRegistry.php on line 174