实施firebaseui和冲突appcompat-v7：27.1.1

Question

This is my module.app error on line 23 please help me

Answer 1

在您的build.gradle (:app)末尾添加此行。

configurations.all {
resolutionStrategy.eachDependency { DependencyResolveDetails details ->
    def requested = details.requested
    if (requested.group == 'com.android.support') {
            details.useVersion '27.1.1'
     }

   }
}

Answer 2

使用此

implementation 'com.firebaseui:firebase-ui-auth:4.1.0'

https://firebase.google.com/docs/auth/android/firebaseui