错误：程序类型已存在：com.google.firebase.iid.FirebaseInstanceId答案

【问题标题】：Error: Program type already present: com.google.firebase.iid.FirebaseInstanceId错误：程序类型已存在：com.google.firebase.iid.FirebaseInstanceId
【发布时间】：2019-07-25 14:12:18
【问题描述】：

请帮忙解决这个错误

apply plugin: 'com.android.application'

机器人{ compileSdkVersion 28 默认配置 { applicationId "com.zeedapp.get_message_info" minSdkVersion 17 targetSdkVersion 28 版本代码 1 版本名称“1.0” testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    javaCompileOptions {
        annotationProcessorOptions {
            includeCompileClasspath true
        }
    }
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}

}
  dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.firebase:firebase-firestore:18.1.0'
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'
implementation 'com.google.firebase:firebase-core:16.0.7'
implementation 'com.google.firebase:firebase-admin:6.7.0'

implementation 'io.grpc:grpc-auth:1.18.0'
implementation 'io.grpc:grpc-netty-shaded:1.18.0'
implementation 'io.grpc:grpc-android:1.18.0'
implementation 'io.grpc:grpc-stub@1.18.0'
implementation 'io.grpc:grpc-protobuf-lite:1.18.0'
implementation 'io.grpc:grpc-okhttp:1.18.0'

错误：程序类型已存在：com.google.firebase.iid.FirebaseInstanceId

【问题讨论】：

显示你的“类路径 'com.google.gms:google-services”

标签： java android gradle

【解决方案1】：

buildscript {
    // ...
    dependencies {
        // ...
        classpath 'com.google.gms:google-services:4.2.0' // google-services plugin
    }
}

     dependencies {
          // ...
          implementation 'com.google.firebase:firebase-core:16.0.7'
          implementation 'com.google.firebase:firebase-firestore:18.1.0'        

         }

欲了解更多信息，请访问以下链接https://firebase.google.com/docs/android/setup

【讨论】：