파이어베이스 인증 문제 입니다.

Question

Launching lib\main.dart on Android SDK built for x86 in debug mode... [{"event":"app.progress","params":{"appId":"3eb926a5-5e07-413a-8f22-dee0ea614790","id":"0","progressId":null,"message":"Initializing gradle..."}}]Initializing gradle... Resolving dependencies... [{"event":"app.progress","params":{"appId":"3eb926a5-5e07-413a-8f22-dee0ea614790","id":"2","progressId":null,"message":"Running Gradle task 'assembleDebug'..."}}]Running Gradle task 'assembleDebug'... registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection) registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection) C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\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 C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\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 C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\android\src\main\java\io\flutter\plugins\firebaseauth\FirebaseAuthPlugin.java:789: error: cannot find symbol private void reportException(Result result, @Nullable Exception exception) { ^ symbol: class Nullable location: class FirebaseAuthPlugin C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\android\src\main\java\io\flutter\plugins\firebaseauth\FirebaseAuthPlugin.java:679: error: cannot find symbol public void onComplete(@NonNull Task task) { ^ symbol: class NonNull location: class FirebaseAuthPlugin.SignInCompleteListener C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\android\src\main\java\io\flutter\plugins\firebaseauth\FirebaseAuthPlugin.java:704: error: cannot find symbol public void onComplete(@NonNull Task task) { ^ symbol: class NonNull location: class FirebaseAuthPlugin.TaskVoidCompleteListener C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\android\src\main\java\io\flutter\plugins\firebaseauth\FirebaseAuthPlugin.java:722: error: cannot find symbol public void onComplete(@NonNull Task task) { ^ symbol: class NonNull location: class FirebaseAuthPlugin.GetSignInMethodsCompleteListener C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\android\src\main\java\io\flutter\plugins\firebaseauth\FirebaseAuthPlugin.java:541: error: cannot find symbol public void onComplete(@NonNull Task task) { ^ symbol: class NonNull C:\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-0.14.0\android\src\main\java\io\flutter\plugins\firebaseauth\FirebaseAuthPlugin.java:628: error: cannot find symbol public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) { ^ symbol: class NonNull 8 errors ******************************************************************************************* The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app. See https://goo.gl/CP92wY for more information on the problem and how to fix it. ******************************************************************************************* Finished with error: Gradle task assembleDebug failed with exit code 1 구글링 스택오버플로우 깃허브 계속 보면서 이렇게 해봐라 저렇게 해봐라 하는 글 보면서 해봤는데 안되어서 이렇게 여쭈어봅니다. flutter doctor에도 다 v자 체크로 이상없습니다. 정말 미치겠어욥ㅠ.ㅠ

google_user · Answer

import androidx.annotation.NonNull;  이 에러는 강사님이 중간에 build.gradle 이랑 properties인가 그 쪽에 추가해주신 mux 뭐시기 코드들 추가 해 주시면 됩니다. (androidx 라고 안드로이드 새로운 버전에 따라 jetpack들 추가 된 것들인데.. 강사님이 추가 하시는 코드들이 그거 잘 컴파일 하도록 하는 것 같더라구요)

오준석 · Answer

android 폴더 밑에 gradle.properties 파일에 androidX 관련 설정이 되어 있나 확인 해 보시겠어요? android.useAndroidX = true android.enableJetifier = true