Firebase auth plugin crash IOS and android

[kroikie]

Hi,

I'm trying to use the Firebase auth plugin for my app, but after installing everything as explained in the firebase docs and running it, it crash on both Android and IOS.

My pubspec.yaml:

dependencies:
  google_sign_in: ^4.0.0
  firebase_auth: ^0.8.0+1

Crash on IOS:

Launching lib/main.dart on iPhone XS Max in debug mode...
Xcode build done.                                            7.3s
*** First throw call stack:
(
	0   CoreFoundation                      0x000000010576329b __exceptionPreprocess + 331
	1   libobjc.A.dylib                     0x0000000104cff735 objc_exception_throw + 48
	2   CoreFoundation                      0x00000001057630f5 +[NSException raise:format:] + 197
	3   Runner                              0x00000001019449f0 +[FIRApp configure] + 576
	4   Runner                              0x00000001019a3e3c -[FLTFirebaseAuthPlugin init] + 188
	5   Runner                              0x00000001019a3cad +[FLTFirebaseAuthPlugin registerWithRegistrar:] + 173
	6   Runner                              0x00000001018e9c4b +[GeneratedPluginRegistrant registerWithRegistry:] + 123
	7   Runner                            <…>

Crash on android:

Launching lib/main.dart on ONEPLUS A5010 in debug mode...
Initializing gradle...                                       1.0s
Resolving dependencies...                                    2.3s
Gradle task 'assembleDebug'...
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:9: error: cannot find symbol
import androidx.annotation.NonNull;
                          ^
  symbol:   class NonNull
  location: package androidx.annotation
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:10: error: cannot find symbol
import androidx.annotation.Nullable;
                          ^
  symbol:   class Nullable
  location: package androidx.annotation
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:638: error: cannot find symbol
  private void reportException(Result result, @Nullable Exception exception) {
                                               ^
  symbol:   class Nullable
  location: class FirebaseAuthPlugin
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:550: error: cannot find symbol
    public void onComplete(@NonNull Task<AuthResult> task) {
                            ^
  symbol:   class NonNull
  location: class FirebaseAuthPlugin.SignInCompleteListener
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:569: error: cannot find symbol
    public void onComplete(@NonNull Task<Void> task) {
                            ^
  symbol:   class NonNull
  location: class FirebaseAuthPlugin.TaskVoidCompleteListener
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:587: error: cannot find symbol
    public void onComplete(@NonNull Task<SignInMethodQueryResult> task) {
                            ^
  symbol:   class NonNull
  location: class FirebaseAuthPlugin.GetSignInMethodsCompleteListener
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:186: error: cannot find symbol
                      public void onComplete(@NonNull Task<AuthResult> task) {
                                              ^
  symbol: class NonNull
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:445: error: cannot find symbol
              public void onComplete(@NonNull Task<GetTokenResult> task) {
                                      ^
  symbol: class NonNull
/Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java:499: error: cannot find symbol
          public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
                                          ^
  symbol: class NonNull
Note: /Users/theo/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.8.0+1/android/src/main/java/io/flutter/plugins/firebaseauth/FirebaseAuthPlugin.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
9 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':firebase_auth:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 4s

Gradle task 'assembleDebug'... Done                          5.4s
Gradle task assembleDebug failed with exit code 1

flutter doctor -v

[✓] Flutter (Channel stable, v1.0.0, on Mac OS X 10.14 18A391, locale en-AU)
    • Flutter version 1.0.0 at /Users/theo/flutter
    • Framework revision 5391447fae (9 weeks ago), 2018-11-29 19:41:26 -0800
    • Engine revision 7375a0f414
    • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)