如何在Android上构建Flutter应用程序时修复“依赖性失败”

Question

我正在尝试使用我的Flutter应用程序使用Google登录。但是，由于依赖项的某些问题，我无法构建应用程序。我已将所有依赖项更新到最新版本但无济于事。如何解决这些依赖关系，以便构建应用程序？

这是一个简单的颤动应用程序使用谷歌登录在连接的OnePlus 6 Android手机上运行。

我尝试将我的依赖项更新为最新版本，并更改​​代码以匹配此处找到的google_sign_in依赖项的最新版本：https://pub.dartlang.org/packages/google_sign_in

我还尝试将firebase_core添加到依赖项列表中，因为错误消息表明应用程序依赖于firebase_core。这没有改变错误消息。

项目'pubspec.yaml'依赖项

dependencies:
  flutter:
    sdk: flutter

  duration: ^2.0.0
  firebase_core: ^0.3.2
  cloud_firestore: ^0.9.11
  firebase_auth: ^0.8.4
  google_sign_in: ^4.0.1+3
  cupertino_icons: ^0.1.2

dev_dependencies:
  flutter_test:
    sdk: flutter  

项目级build.gradle（android / build.gradle）：

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        // Google Services class path
        classpath 'com.google.gms:google-services:4.2.0'
    }
}

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
}

App Level build.gradle（android / app / build.gradle）：

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.recipe_app"
        minSdkVersion 21
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }

    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 {
    implementation 'com.google.firebase:firebase-core:16.0.1'
    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'

'颤动'的输出：

Launching lib/main.dart on ONEPLUS A6003 in debug mode...
Initializing gradle...                                              1.0s
Resolving dependencies...                                           4.0s
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)

FAILURE: Build failed with an exception.

* What went wrong:
Failed to capture fingerprint of input files for task ':app:checkDebugClasspath' property 'compileClasspath' during up-to-date check.
> In project 'app' a resolved Google Play services library dependency depends on another at an exact version (e.g. "[15.0.
  1]", but isn't being resolved to that version. Behavior exhibited by the library will be unknown.

  Dependency failing: com.google.android.gms:play-services-stats:15.0.1 -> com.google.android.gms:play-services-basement@[
  15.0.1], but play-services-basement version was 16.1.0.

  The following dependencies are project dependencies that are direct or have transitive dependencies that lead to the art
  ifact with the issue.
  -- Project 'app' depends on project 'cloud_firestore' which depends onto com.google.firebase:[email protected]
  -- Project 'app' depends onto com.google.firebase:[email protected]
  -- Project 'app' depends on project 'firebase_auth' which depends onto com.google.firebase:[email protected]
  -- Project 'app' depends on project 'google_sign_in' which depends onto com.google.android.gms:[email protected]

  For extended debugging info execute Gradle from the command line with ./gradlew --info :app:assembleDebug to see the dep
  endency paths to the artifact. This error message came from the google-services Gradle plugin, report issues at https://
  github.com/google/play-services-plugins and disable by adding "googleServices { disableVersionCheck = false }" to your b
  uild.gradle file.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done                         2.9s
Gradle task assembleDebug failed with exit code 1

我希望应用程序能够成功构建，以便我可以测试Google登录是否有效。但是，应用程序无法成功构建，我不知道该怎么做。

Answer 1

我试图使用详细模式重新编译，并被告知AndroidX是原因。

我按照这个link并将所有依赖项降级到AndroidX迁移之前的版本，如本文所列。这解决了这个问题。