[Android] Make sure to call FirebaseApp.initializeApp(Context) first.

 

특정 단말에서만 났던 에러.

앱 재설치 후 첫 실행시에만. 앱이 죽는다.

로그는 다음과 같았고,

 

  --------- beginning of crash

2019-03-20 10:21:47.709 4309-4309/com. E/AndroidRuntime: FATAL EXCEPTION: main

    Process: com., PID: 4309

    java.lang.RuntimeException: Unable to create application com.Application: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com. Make sure to call FirebaseApp.initializeApp(Context) first.

        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5879)

        at android.app.ActivityThread.-wrap3(ActivityThread.java)

        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1699)

        at android.os.Handler.dispatchMessage(Handler.java:102)

        at android.os.Looper.loop(Looper.java:154)

        at android.app.ActivityThread.main(ActivityThread.java:6682)

        at java.lang.reflect.Method.invoke(Native Method)

        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)

        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

     Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com. Make sure to call FirebaseApp.initializeApp(Context) first.

        at com.google.firebase.FirebaseApp.getInstance(com.google.firebase:firebase-common@@16.0.2:240)

        at com.google.firebase.iid.FirebaseInstanceId.getInstance(Unknown Source)

        at com.google.firebase.iid.zzaw.<init>(Unknown Source)

        at com.google.firebase.iid.zzaw.<init>(Unknown Source)

        at com.google.firebase.iid.FirebaseInstanceId.<init>(Unknown Source)

        at com.google.firebase.iid.FirebaseInstanceId.<init>(Unknown Source)

        at com.google.firebase.iid.zzao.create(Unknown Source)

        at com.google.firebase.components.zzj.zza(com.google.firebase:firebase-common@@16.0.2:43)

        at com.google.firebase.components.zzk.get(com.google.firebase:firebase-common@@16.0.2)

        at com.google.firebase.components.zzj.get(com.google.firebase:firebase-common@@16.0.2:54)

        at com.google.firebase.components.zza.get(com.google.firebase:firebase-common@@16.0.2:26)

        at com.google.firebase.components.zzf.get(com.google.firebase:firebase-common@@16.0.2:34)

        at com.google.firebase.components.zzf.zza(com.google.firebase:firebase-common@@16.0.2:82)

        at com.google.firebase.FirebaseApp.zze(com.google.firebase:firebase-common@@16.0.2:761)

        at com.google.firebase.FirebaseApp.initializeApp(com.google.firebase:firebase-common@@16.0.2:359)

        at com.fcm.FcmApp.createApp(FcmApp.kt:36)

        at com.Application.onCreate(AppApplication.java:60)

        at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1032)

        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5876)

        at android.app.ActivityThread.-wrap3(ActivityThread.java) 

        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1699) 

        at android.os.Handler.dispatchMessage(Handler.java:102) 

        at android.os.Looper.loop(Looper.java:154) 

        at android.app.ActivityThread.main(ActivityThread.java:6682) 

        at java.lang.reflect.Method.invoke(Native Method) 

        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520) 

        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410) 

 

 

여기서 Make sure to call FirebaseApp.initializeApp(Context) first. 에 주목해보면

Application 단에서

public class AppApplication extends Application {

    public void onCreate() {
    super.onCreate();         
    FirebaseApp.initializeApp(context, optionsBuilder.build(), APP_NAME); 
    }

 

 

 

하지만 이미 나는 이 코드가 있었고 뭐가 문제인가 찾아보니, AndroidManifest.xml에 allowBackup 설정이 없었다.

FCM도 SharedPreference에 정보를 저장해두는 부분이 있는 듯 하다. 안에 까보면 SharedPreference 를 사용하는 부분이 있다.

아래처럼 추가해주면 더이상 저 에러는 볼 수 없음.

<application
 android:name=".AppApplication"
 android:allowBackup="false"
 android:hardwareAccelerated="true"
 android:icon="@mipmap/ic_launcher"
 android:label="@string/app_name"
 android:largeHeap="true"
 android:networkSecurityConfig="@xml/network_security_config"
 android:roundIcon="@mipmap/ic_launcher_round"
 android:theme="@style/AppTheme"
 tools:replace="android:icon,android:theme,android:allowBackup">