I have developed three apps that I am trying to test on an Android Samsung S6. I have set myself up as an Internal Tester, and the app shows that status for me in the Google Play Store. So I know that the account is set up correctly.
But when I try to install my Internal Tests, I get the error:
"Can't Install DealEstates Investor for Phone. Try again, and if it still doesn't work, see common ways to fix the problem"
I have tried clearing the cache for the Play Store and Play Store Services, restarting the phone, deleting my account and restarting the phone and then signing in again. Nothing I do seems to help. I'm wondering if it might be a problem with my app and not the Play Store, although it does install by USB just fine so I doubt it.
Any thoughts on things I should try???