更新 经过一番挖掘，我发现这是一个错误。它将在 Android Studio 的以下更新中修复:1.0 RC3

我是第一次在 Android Studio 中检查后端，我正在观看此视频教程: https://cloud.google.com/mobile/

我使用“App Engine Java 端点模块”向我的 AS 项目添加了一个后端模块。 该项目没有显示任何错误，可以构建并且我尝试与 gradle 同步几次。

然而这不断弹出:

未在模块上检测到 App Engine Gradle 配置，您可能需要将项目与 Gradle 同步。

这可能是错误还是我遗漏了什么？

项目级gradle:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.0.0-rc1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

应用程序等级:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.1"

    defaultConfig {
        applicationId "be.thomascbeerten.cloudtest2"
        minSdkVersion 15
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.2'
    compile project(path: ':backend', configuration: 'android-endpoints')
}

后端渐变:

// If you would like more information on the gradle-appengine-plugin please refer to the github page
// https://github.com/GoogleCloudPlatform/gradle-appengine-plugin

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.google.appengine:gradle-appengine-plugin:1.9.14'
    }
}

repositories {
    mavenCentral();
}

apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'appengine'

sourceCompatibility = JavaVersion.VERSION_1_7
targetCompatibility = JavaVersion.VERSION_1_7

dependencies {
    appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.14'
    compile 'com.google.appengine:appengine-endpoints:1.9.14'
    compile 'com.google.appengine:appengine-endpoints-deps:1.9.14'
    compile 'javax.servlet:servlet-api:2.5'
}

appengine {
    downloadSdk = true
    appcfg {
        oauth2 = true
    }
    endpoints {
        getClientLibsOnBuild = true
        getDiscoveryDocsOnBuild = true
    }
}

最佳答案

这个奇怪的问题发生在后端模块的自动创建的build.gradle文件中。

我已将“应用插件”行移动到顶部以使其正常工作，并在运行配置中显示“后端”。默认创建的文件在中间某处有插件行。

这还将避​​免“未在模块上检测到 App Engine Gradle 配置，也许您需要将项目与 Gradle 同步”。错误。

apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'appengine'

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.google.appengine:gradle-appengine-plugin:1.9.28'
    }
}

repositories {
    jcenter();
}

sourceCompatibility = JavaVersion.VERSION_1_7
targetCompatibility = JavaVersion.VERSION_1_7

dependencies {
  appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.28'
  compile 'com.google.appengine:appengine-endpoints:1.9.28'
  compile 'com.google.appengine:appengine-endpoints-deps:1.9.28'
  compile 'javax.servlet:servlet-api:2.5'
}

appengine {
  downloadSdk = true
  appcfg {
    oauth2 = true
  }
  endpoints {
    getClientLibsOnBuild = true
    getDiscoveryDocsOnBuild = true
  }
}

关于android - 无法在 Android Studio 中运行后端，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27200406/