How to setup cordova-plugin-firebase-authenication for ionic 3?

Multi tool use
How to setup cordova-plugin-firebase-authenication for ionic 3?
I am using this plugin : https://github.com/chemerisuk/cordova-plugin-firebase-authentication to use Phone verify for my ionic android application.
but, when i install this plugin and try to run it using : ionic cordova run android
..It gives me following error:
ionic cordova run android
[string/google_app_id] /home/intel/blank/platforms/android/app/src/main/res/values/strings.xml [string/google_app_id]
/home/intel/blank/platforms/android/app/build/generated/res/google-services/debug/values/values.xml:
Error: Duplicate resources
I checked my strings.xml and values.xml but there are not any duplicate api key or id.
My project.properties file :
target=android-26
android.library.reference.1=CordovaLib
android.library.reference.2=app
cordova.gradle.include.1=cordova-plugin-firebase/starter-build.gradle
cordova.system.library.1=com.google.gms:google-services:+
cordova.system.library.3=com.google.firebase:firebase-core:+
cordova.system.library.4=com.google.firebase:firebase-messaging:+
cordova.system.library.5=com.google.firebase:firebase-crash:+
cordova.system.library.6=com.google.firebase:firebase-config:+
cordova.gradle.include.2=cordova-support-google-services/starter-build.gradle
cordova.system.library.7=com.google.firebase:firebase-auth:16.0.+
Any help would be appreciated..Thanks in advance.
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