Error 404: redirect_uri_mismatch

[skatilmi]

I called the imap2gg command with the flags needed. A browser window opens with google saying

Access blocked: This app’s request is invalid
You can’t sign in because this app sent an invalid request. You can try again later, or contact the developer about this issue. Learn more about this error
If you are a developer of this app, see error details.
Error 400: redirect_uri_mismatch

which URI do I have to add in the credentials on google dev ? Should the OAuth Screen be internal or extrenal? Right now its set to external.

[skatilmi]

I figured it out. In my case, I was able to fix it by changing the authentication type from Web to Desktop. After that, it worked.