I\'m using react-native-fbsdk: 0.8.0, react-native-firebase: ^5.2.2, react-native: ^0.57.4 and Facebook Test User account.
This happened so suddenly. On
I know that is not a real solution.. but I've added a logout function before the signIn. I had no problems yet. The problem consists of the same user tried to connect multiple times without a proper logout.
In my case; i got rid of this error when i turned off "Is App Secret embedded in the client?" in: Facebook for developers -> Settings -> Advanced.
Note: This option is visible if "Native or desktop app?" is enabled.
If the app secret is wrong in firebase than this problem occurs
if the access token is entered wrong than also this problem occurs
I had the same issue, when it turned out I forgot to set the correct API keys and secret in the Firebase console (Authentication methods).
In my case, I had added the wrong bundle ID/ iOS application to Firebase. So I went back to the project on Firebase, clicked Settings icon, clicked Project Settings, and removed the iOS app, and re-added the correct application.
This could potentially fix problems on Android too, ensure the package name is correct.
Had the same issue, it's gone after restarting the device