Firebase config file error

Please help!
Hello guy’s can somebody help me with my error? I’m trying to mage a google login but it gives me this error

Make sure you’ve uploaded the file named google-services.json in asset. And, the configurations are correct.

Thank you for that information Mr. asimjib93 but I have uploaded the google-service.json already and the error still persist.

Then there is error in your configuration. Delete the app from Firebase, add it from scratch putting correct package name, SHA1 key etc.

Thank you. I’m gonna try that.