Admins, Trainees and Teachers, yes, but you have no module role ‘User’ in module ‘MyFirstModule’. You have two options to solve these errors:
Finally found what’s going on. My error is right on the first steps…
Instead of configuring Security from Demo to Production and after that proceed to deleting all roles as says the tutorial, I leave on Demo/prototype mode the whole time, preventing me to view the right tab. Now I’m without errors.
Indeed, thanks Tim van Steenbergen for your patience to answer!