Scout login error message: "Only the original thread that created a view hierarchy can touch its views"

What to do if you see this error message on your device.

Problem: After entering the login information an error msg appears which says: "Only the original thread that created a view hierarchy can touch its views".

Cause: Known cause for this error message is that the login password has been typed incorrectly.

Resolution: Make sure that you have entered your login credentials correctly. Please note that they are case sensitive.