I'm trying to use Firebase Messaging. I followed the steps in the guide.
When I try to run the app, it crash launching this log:
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.res.Resources.getResourcePackageName(int)' on a null object reference
at android.app.ActivityThread.installProvider(ActivityThread.java:6765)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6357)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6297)
at android.app.ActivityThread.access$1800(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.res.Resources.getResourcePackageName(int)' on a null object reference
at com.google.android.gms.common.internal.zzah.<init>(Unknown Source)
at com.google.firebase.FirebaseOptions.fromResource(Unknown Source)
at com.google.firebase.FirebaseApp.zzbu(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1789)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1764)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:6762)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6357)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6297)
at android.app.ActivityThread.access$1800(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
I saw in some post of StackOverflow, that in gradle.build file must be the applicationId , but I have it, and still crashes.
defaultConfig {
applicationId "es.in2.otr.app.im"
minSdkVersion 16
targetSdkVersion 23
multiDexEnabled true
testApplicationId "es.in2.otr.app.im.test"
testInstrumentationRunner "android.test.InstrumentationTestRunner"
}
There is some type of solution or workaround?