The steps to fix this second Hard stop
1.) Open up ConcertsController.php and find the line: $concert = Concert::find($id);
2.) Hover over the class name, which is Concert::. Once your mouse is hovering over this hold down Alt and right click. In php storm this will bring up a new window that says “import this class”. Click to import the class. Alternatively if you are not using PHPstorm you can import the class by copying the code below:
use App\Concert; This goes at the top of the ConcertsController.php document.