Unhandled Exception: [firebase_messaging/unknown] java.io.IOException: PHONE_REGISTRATION_ERROR

[suraj1905]

I am getting below error while trying to generate Firebase messaging token. I have installed firebasefire cli and done the required configuration but still this issue is not resolved. Can anyone please help?

Topic sync or token retrieval failed on hard failure exceptions: PHONE_REGISTRATION_ERROR. Won't retry the operation.
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: [firebase_messaging/unknown] java.io.IOException: PHONE_REGISTRATION_ERROR
E/flutter (24837): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:652:7)
E/flutter (24837): #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:310:18)
E/flutter (24837):
E/flutter (24837): #2 MethodChannel.invokeMapMethod (package:flutter/src/services/platform_channel.dart:510:43)
E/flutter (24837):
E/flutter (24837): #3 MethodChannelFirebaseMessaging.getToken (package:firebase_messaging_platform_interface/src/method_channel/method_channel_messaging.dart:224:11)
E/flutter (24837):