I followed the official laracast 5.3 tutorial to send a slack notification from Laravel (I'm using laravel 5.4). But upon following all the procedures when I hit the url I get the following error. I haven't touched the Connection.php file at all since making the project. Here is the tutorial link: https://laracasts.com/series/whats-new-in-laravel-5-3/episodes/11 Screen shot of error
via Talal_Mirza
