An error occurred while attempting to retrieve the OAuth 2.0 Access Token Response: 401 Unauthorized

[NaceurBouhamed]

I followed the exact steps in this tutorial, but kept having this error

[invalid_token_response] An error occurred while attempting to retrieve the OAuth 2.0 Access Token Response: 401 Unauthorized

I tried this quickstart guide here to make sure the aad is well configured and it worked like a charm.

Has anyone faced the same problem ?