Google Oauth - Error 10 (even in simulator) - What to do?

My app was working fine with Google Oauth but suddenly it stops working.

I’m using the right web client id, nothing in the code have changed.

How can I debug this? The signin ins’t working even in the android simulator and it was working fine before.

Do I need anything related to android keys even whe I’m testing the app using the android simulator?

What should I check? I was looking at the docs and to be honest I think I’m missing something.

Meteor 1.5.2

Thanks :slight_smile:

Someone can help me please? I can provide more info if necessary.

Thank you.

Here is my question in Github.