Firebase Cloud Messaging Cannot invoke method get() on null object

When i want to react-native run-android i get this error

* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugApk'.
   > A problem occurred configuring project ':react-native-push-notification'.
      > Cannot invoke method get() on null object

I am using firebase cloud messaging… Or is that not a good idea? I just want to send Push Notifications from my backend to the app.

When i did these steps descriped in firebase. I get the errror

(<project>/build.gradle):
buildscript {
  dependencies {
    // Add this line
    classpath 'com.google.gms:google-services:4.0.0'
  }
}
(<project>/<app-module>/build.gradle):
dependencies {
  // Add this line
  compile 'com.google.firebase:firebase-core:16.0.0'
}
...
// Add to the bottom of the file
apply plugin: 'com.google.gms.google-services'

I tried to open it with android studio but there i get the same error message

[baselbj]

try updating android/build.gradle from: classpath ‘com.google.gms:google-services:4.0.0’ to: classpath ‘com.google.gms:google-services:4.0.1’

stackoverflow: https://stackoverflow.com/questions/50844361/failed-to-notify-dependency-resolution-listener

[Ashutosh8127]

heyyy (<project>/build.gradle): buildscript { dependencies { // Add this line classpath ‘com.google.gms:google-services:+’ } } (<project>/<app-module>/build.gradle): dependencies { // Add this line compile ‘com.google.firebase:firebase-core:+’ } … // Add to the bottom of the file apply plugin: ‘com.google.gms.google-services’

it’s use like this it’s work fine