Firebase云消息传递FCM构建错误无法添加任务'：processDebugGoogleServices'作为具有该名称的任务已存在

Question

我正在尝试将推送通知与Firebase云消息传递和Cordova FCM一起使用。我的google-services.json位于根文件夹中，其中包含config.xml和platform / android /文件夹中的相同文件。随着离子cordova构建我得到错误：

配置根项目'android'时出现问题。

无法添加任务'：processDebugGoogleServices'作为具有该名称的任务已存在。

我安装了：

cordova plugin add cordova-support-google-services --save
ionic cordova plugin add cordova-plugin-fcm
npm install --save @ionic-native/fcm

以前是另一个原因：

cordova插件添加cordova-plugin-googleplus ...

现在我得到了什么：

平台/安卓/科尔多瓦 - 插件-FCM / MYAPP-FCMPlugin.gradle：

buildscript {
    repositories {
            jcenter()
            mavenLocal()
        }
    dependencies {
        classpath 'com.android.tools.build:gradle:+'
        classpath 'com.google.gms:google-services:3.0.0'
    }
}
// apply plugin: 'com.google.gms.google-services'
// class must be used instead of id(string) to be able to apply plugin from non-root gradle file
apply plugin: com.google.gms.googleservices.GoogleServicesPlugin

平台/安卓/科尔多瓦支持，谷歌的服务/ MYAPP-的build.gradle：

buildscript {
    repositories {
        jcenter()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:+'
        classpath 'com.google.gms:google-services:3.2.0'
    }
}

// apply plugin: 'com.google.gms.google-services'
// class must be used instead of id(string) to be able to apply plugin from non-root gradle file
ext.postBuildExtras = {
    apply plugin: com.google.gms.googleservices.GoogleServicesPlugin
}

平台/安卓/ project.properties：

target=android-26
android.library.reference.1=CordovaLib
cordova.system.library.1=com.google.android.gms:play-services-auth:11.0.1
cordova.system.library.2=com.google.android.gms:play-services-identity:11.0.1
cordova.system.library.3=com.facebook.android:facebook-android-sdk:4.14.+
cordova.system.library.4=com.google.firebase:firebase-core:+
cordova.system.library.5=com.google.firebase:firebase-messaging:11.0.1
cordova.gradle.include.1=cordova-plugin-fcm/myapp-FCMPlugin.gradle
cordova.gradle.include.2=cordova-support-google-services/myapp-build.gradle

这是从以下编辑：

target=android-26
android.library.reference.1=CordovaLib
cordova.system.library.1=com.google.android.gms:play-services-auth:+
cordova.system.library.2=com.google.android.gms:play-services-identity:+
cordova.system.library.3=com.facebook.android:facebook-android-sdk:4.14.+
cordova.system.library.4=com.google.firebase:firebase-core:+
cordova.system.library.5=com.google.firebase:firebase-messaging:+
cordova.gradle.include.1=cordova-plugin-fcm/myapp-FCMPlugin.gradle

platforms / android / build.gradle也被编辑为project.properties：

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    // SUB-PROJECT DEPENDENCIES START
    debugCompile(project(path: "CordovaLib", configuration: "debug"))
    releaseCompile(project(path: "CordovaLib", configuration: "release"))
    compile "com.google.android.gms:play-services-auth:11.0.1"
    compile "com.google.android.gms:play-services-identity:11.0.1"
    compile "com.facebook.android:facebook-android-sdk:4.14.+"
    compile "com.google.firebase:firebase-core:+"
    compile "com.google.firebase:firebase-messaging:11.0.1"
    // SUB-PROJECT DEPENDENCIES END
}

插件/科尔多瓦 - 插件-FCM / SCR /安卓/ FCMPlugin.gradle：

buildscript {
    repositories {
            jcenter()
            mavenLocal()
        }
    dependencies {
        classpath 'com.android.tools.build:gradle:+'
        classpath 'com.google.gms:google-services:3.0.0'
    }
}
// apply plugin: 'com.google.gms.google-services'
// class must be used instead of id(string) to be able to apply plugin from non-root gradle file
apply plugin: com.google.gms.googleservices.GoogleServicesPlugin

插件/科尔多瓦支持 - 谷歌服务/的build.gradle：

buildscript {
    repositories {
        jcenter()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:+'
        classpath 'com.google.gms:google-services:3.2.0'
    }
}

// apply plugin: 'com.google.gms.google-services'
// class must be used instead of id(string) to be able to apply plugin from non-root gradle file
ext.postBuildExtras = {
    apply plugin: com.google.gms.googleservices.GoogleServicesPlugin
}

不确定有什么问题，建议会有所帮助