未找到 ID 为“com.google.gms:google-services”的插件。扑

Question

我是 Flutter 框架的新手。我正在尝试在 Flutter 中安装 Cloud Firestore，但遇到了问题。以下是我的代码和 gradle 文件： Android/build.gradlew：

buildscript {
    // ext.kotlin_version = '1.2.31'
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath 'com.google.gms:google-services:3.2.0'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

App/build.gradle 是：

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 28

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.barcode_app"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    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'

在运行 flutter run -v 或在 android 中构建后，我得到了错误： “错误：未找到 ID 为 'com.google.gms:google-services' 的插件。” enter image description here

我尝试了stackoverflow和github上几乎所有可用的解决方案，但问题仍然存在。

Answer 1

在你的 app/build.gradle 文件的底部，你有：

apply plugin: 'com.google.gms:google-services'

这实际上应该是：

apply plugin: 'com.google.gms.google-services'

注意gms 和google-services 之间的句点，而不是冒号。

编辑：您可能遇到此问题，因为 Google 自己的文档（上次编辑于 3 月 20 日）不正确。我已向他们发送反馈以更正此问题。 存档在这里http://archive.is/4Ujuc

其实谷歌是正确的：classpath 'com.google.gms:google-services:4.2.0' 是正确的，apply plugin: 'com.google.gms.google-services' 也是正确的。一个有冒号，一个有句号。但是名称是如此相似，以至于很容易认为它们应该是相同的。 只要记住“classpath” - 冒号，“plugin” - PERIOD。

Answer 2

如果应用 Jmorris 和 Johnhunter 解决方案后问题仍然存在，请查看此solution

解决办法是：

Upgrade the Android Gradle plugin to 3.5.0
Upgrade the Google Services plugin to 4.3.3
Upgrade Gradle to 5.4.1 (the required Gradle version for this Android Gradle plugin version)

Answer 3

只需删除google-services.json 文件并使用您的项目重新配置firebase。