React-native google signin gives Developer Error

Question

I am trying Google login using React-native-google-signin plugin but it gives me a Developer_Error.I have done exctly same as mention in its document.here is my code ans steps.<

Answer 1

I think sometime it may possible for an old fingerprint (from a different dev in a former time) could be conflicting. So SHA1 should be proper. Delete the old SHA-1 and re-download google-services.json