Firebase gradle在Android Studio中使用颤振失败

我是Android Studio和Flatter的新手。我最近想试试颤振，因此在Android Studio中安装了这个插件。我的flatter代码没有bug，但是gradle失败了

应用程序级构建梯度：

def localProperties = new Properties()  //here, Properties gets highlighted as error
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.")        //here,GradleException gets highlighted as error
}

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.mee.createevent"
        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 {
    compile 'com.google.firebase:firebase-core:16.0.1'
    implementation 'com.google.android.gms:play-services-analytics:16.0.1'
    implementation 'com.google.firebase:firebase-analytics:16.0.1'
    implementation 'com.google.firebase:firebase-firestore:17.0.2'
    implementation 'com.google.firebase:firebase-functions: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'

模块级构建梯度

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
        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
}

我的错误：

FAILURE: Build failed with an exception.

* What went wrong:
Failed to notify dependency resolution listener.
> The library com.google.android.gms:play-services-measurement-base is being requested by various other libraries at [[16.0.0,16.0.0]], but resolves to 15.0.2. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.
> The library com.google.firebase:firebase-analytics is being requested by various other libraries at [[16.0.1,16.0.1]], but resolves to 15.0.2. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.

* 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 20s
Finished with error: Gradle build failed: 1

我尝试过包含一些依赖项，如play service版本和firebase analytics版本，但此错误不会消失，属性和GradleException仍然以红色突出显示为错误。我不知道如何解决此问题

公开发行

name: create_event
description: A new Flutter application.

dependencies:
  cloud_firestore:

  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2

dev_dependencies:
  flutter_test:
    sdk: flutter


# For information on the generic Dart part of this file, see the
# following page: https://www.dartlang.org/tools/pub/pubspec

# The following section is specific to Flutter.
flutter:

  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true

  # To add assets to your application, add an assets section, like this:
  # assets:
  #  - images/a_dot_burr.jpeg
  #  - images/a_dot_ham.jpeg

  # An image asset can refer to one or more resolution-specific "variants", see
  # https://flutter.io/assets-and-images/#resolution-aware.

  # For details regarding adding assets from package dependencies, see
  # https://flutter.io/assets-and-images/#from-packages

  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a
  # list giving the asset and other descriptors for the font. For
  # example:
  # fonts:
  #   - family: Schyler
  #     fonts:
  #       - asset: fonts/Schyler-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700
  #
  # For details regarding fonts from package dependencies,
  # see https://flutter.io/custom-fonts/#from-packages

当我打开应用程序级构建渐变时 （它表示无法解析Properties（）和FileNotFoundException（））

但是，当我单击“在Android Studio中打开以进行编辑”时，相同的一组错误被解决，gradle同步成功

---

但是，Android Studio案例中的这一成功并不反映在Flitter案例中。它仍然存在这些错误。

您是否尝试将google maven存储库添加到您的项目级build.gradle文件中

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

---

buildscript

部分或

allprojects

部分。

在android/build.gradle中仅使用此依赖项，并删除任何其他依赖项

classpath 'com.android.tools.build:gradle:3.1.2'
classpath 'com.google.gms:google-services:3.2.1' 

在pubspec.yaml中，仅使用以下版本以避免渐变错误：

cloud_firestore: 0.7.3 
firebase_admob: 0.5.5
firebase_auth: 0.5.11
google_sign_in: 3.0.4
firebase_analytic: 1.0.1
firebase_core: 0.2.4 
firebase_database: 1.0.1 
firebase_dynamic_links: 0.02
firebase_messaging: 1.0.2
firebase_performance: 0.0.3
firebase_remote_config: 0.0.4
firebase_storage: 0.3.7

---

我创建了另一个应用程序，并替换了所有.dart文件和pubspec.yaml。这是我发现的最快的方法

当我遇到同样的问题时，我能找到的唯一解决方法是更新gradle版本：

在android/gradle/wrapper/gradle wrapper.properties中

发送至

distributionUrl=https\：//services.gradle.org/distributions/gradle-6.0.1-all.zip

及

在android/build.gradle中

到

依赖项{
classpath'com.android.tools.build:gradle:3.5.3'
classpath'com.google.gms:googleservices:4.3.2'

在android/build.gradle中

buildscript {
    ext.kotlin_version = '1.3.61'

在公共规范yaml中

---

我希望它能帮助您。

更改classpath'com.google.gms:googleservices:4.3.2'

---

到classpath'com.google.gms:google services:4.2.0'

可以通过以下步骤删除此错误：

如果可能，请在项目>>android>>应用>>build.gradle文件中增加您的最小sdk版本 2.然后在project>>android>>app>>build.gradle中添加以下行 依赖关系{

实现“androidx.multidex:multidex:2.0.1”

}

---

我希望您的问题现在得到解决。

鉴于您粘贴的失败，我建议您阅读此链接。它也与Android项目相关。错误显示了依赖性问题，但其他内容，如Properties（）和FileNotFoundException（）在实际代码中被突出显示为错误（我刚刚将该图像附加到突出显示的位置）老实说，我对Flitter应用不太熟悉。属性是必需的吗？试着把它放在你的根build.gradle中。另外，不要把IDE高亮显示看得太重。重要的是当你尝试构建时会发生什么。我肯定会建议解决所有构建错误，看看你会得到什么。你是对的，那个高亮显示没有atter.Thx:）很高兴听到这个消息！在这种情况下，这只是工具（您的IDE）的一个限制。我的build.gradle中也有“红色”代码，但所有构建都很好，所以我有一条评论“不要删除此！！！！”：）你有没有试过降低依赖项的级别？在找出哪个版本会给你带来错误之前，也要做一些检查。ESS，这绝对有效，thxx:）使用统一版本（如15.0.2）导致不正确的同步。我按照另一位朋友的建议使用了“+”，最终解决了问题。我如何关闭这个问题？@Aivi这解释了这一点埃蒂·威尔：

firebase_core: ^0.4.2+1 
  cloud_firestore: ^0.12.11