找不到com.google。firebase:firebase-database:16.0.0. 在以下位置搜索android应用程序。文件：/c:/users/malik/appdata/local/android/sdk/extras/m2repository/com/google/firebase/firebase-database/16.0.0.pom文件：/c:/users/malik/appdata/local/android/sdk/extras/m2repository/com/google/firebase/firebase-database/16.0.0/firebase-database-16.0.0.jar
我的应用依赖性：

implementation 'com.android.support:appcompat-v7:27.1.1'
implementation "com.android.support:customtabs:27.1.1"
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
implementation 'com.android.support:design:27.1.1'
implementation 'com.android.support:cardview-v7:27.1.1'

implementation 'com.google.firebase:firebase-core:16.0.0'
implementation 'com.google.firebase:firebase-database:16.0.0'
implementation 'com.google.firebase:firebase-storage:16.0.0'
implementation 'com.google.firebase:firebase-auth:16.0.0'
implementation 'com.google.android.gms:play-services-auth:16.0.0'
implementation 'com.google.android.gms:play-services-maps:16.0.0'

implementation 'com.adityak:browsemyfiles:1.7'
implementation 'com.squareup.picasso:picasso:2.71828'

testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
 apply plugin: 'com.google.gms.google-services'