CodeIgniter 4.0 Release framework - Kint Error

I've had this problem too. People have outlined the fix, but to add, you need to copy the Kint.php file into your app. So from the root folder of your project type:

Code:

cp vendor/codeigniter4/framework/app/Config/Kint.php app/Config

I then set permissions on the new file for good measure:

Code:

sudo chmod 775 app/Config/Kint.php