我是Android Studio和Flutter的新手。我最近想尝试Flutter，因此在Android
Studio中安装了该插件。我的Flutter代码没有错误，但是gradle失败了。

应用程序级别构建gradle：

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gradle

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

我曾尝试包括一些依赖项，例如播放服务版本和Firebase分析版本，但此错误不会消失，并且Properties和GradleException仍会以红色突出显示为错误。我不知道如何解决此问题。

pubspec.yaml

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别时，构建gradle
图像抖动（它说它无法解析Properties（）和FileNotFoundException（））

但是，当我单击“在Android Studio中打开进行编辑”
图像androidStudio时，解决了同一组错误并且gradle同步成功

但是，这种在Android Studio中的成功案例，并没有在Flutter中得到体现。它仍然有那些错误。