How to get the admin rights of an app?

[PreacherStan]

Hello, 

I'm new here and i try to follow the Udacity course. Right now, i'm stuck with the Help Desk app example. I followed all the steps but i can't get the admin rights of the app. 

1/ I opened the app.

2/ I clicked on the app line of the left tree so the code on start appears.

3/ I added my email in double quotes and separated it from the others with a ";".

4/ I clicked on the "run on start".

5/ I opened the previsualization window but impossible to get the admin rights. I only get the error message. What am i missing?

Thank you for your time.