Android Question Google OAuth2 - Error 400: redirect_uri_mismatch

JOTHA

Well-Known Member
Licensed User
Longtime User
Hello Forum,

I used the Example Google OAuth2 from Erel, but I get this Error 400: redirect_uri_mismatch

I've seen that this problem is dicussed in the forum, but there is no solution on this case.
I want to have access to Google Sheets, so I tried first the example with "Contacts" from Erel.

Can anyone point me out to a solution?

Thanks in advance.
 
Last edited:

JOTHA

Well-Known Member
Licensed User
Longtime User
Hi Erel,

after you told me that I had obviously made a mistake, I went through everything again step by step and possibly found the mistake.

But when I wanted to test the code, the following message suddenly came up:
"The developer of this app is not recognized by Play Protect. Apps from unknown developers may not be safe."

I ignored the hint and clicked on "Install anyway".

Then came the message: "App was not installed."
I repeated the process several times, but the same message always came up.

How can I solve this problem?
 
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