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======== Exception caught by widgets library =======================================================
The following FirebaseException was thrown building Builder:
[core/no-app] No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp()

The relevant error-causing widget was:
MaterialApp file:///E:/Programs/flutterLearning/flash-chat-flutter/lib/main.dart:16:12
When the exception was thrown, this was the stack:
#0 MethodChannelFirebase.app (package:firebase\_core\_platform\_interface/src/method\_channel/method\_channel\_firebase.dart:118:5)
#1 Firebase.app (package:firebase\_core/src/firebase.dart:53:41)
#2 FirebaseAuth.instance (package:firebase\_auth/src/firebase\_auth.dart:37:47)
#3 new \_RegistrationScreenState (package:flash\_chat/screens/registration\_screen.dart:15:30)
#4 RegistrationScreen.createState (package:flash\_chat/screens/registration\_screen.dart:11:45)
...
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