任务 ':app:preDebugBuild'. 在 Flutter 中执行失败

Question

Android 依赖项 'com.android.support:support-media-compat' 对于编译 (26.1.0) 和运行时 (27.1.1) 类路径具有不同的版本。您应该通过 DependencyResolution 手动设置相同的版本

我在我的 flutter 应用程序中添加了插件列表

dependencies:
  flutter:
    sdk: flutter
  connectivity:
  rxdart:
  validate: ^1.7.0
  image_picker: ^0.4.10
  shared_preferences: "^0.4.2"
  firebase_auth: ^0.6.2+1
  google_sign_in:

Dart & Flutter 版本：Dart 2.1.0-dev.3.1.flutter-760a9690c2

这是我的 android 应用程序 - gradle

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.")
}

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

android {
    compileSdkVersion 27

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.standardappstructure"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        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'

分发 Gradle 版本：

distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip

项目级别：gradle

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'
        classpath 'com.google.gms:google-services:4.0.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

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

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

如果我将 gradle 类路径更改为

 classpath 'com.android.tools.build:gradle:3.2.1'

它向我展示

Android 依赖项“android.arch.lifecycle:runtime”对于编译 (1.0.0) 和运行时 (1.1.0) 类路径具有不同的版本。您应该通过 DependencyResolution 手动设置相同的版本

Answer 1

我添加implementation("com.android.support:support-v4:latest_version_number")到我的 build.gradle 中并且它起作用了。希望这会有所帮助。