Android Studio构建工作，Gradle命令行失败 [英] Android Studio build works, Gradle command line fails

问题描述

我已经将Eclipse中的应用程序移植到Android Studio中，实现了我需要的功能，并允许它在Android Studio中工作。由于我喜欢使用命令行Gradle构建它的味道数量。但是，当我运行以下命令来构建我的发行版APK时

  gradlew.bat assembleRelease 
  
  
 
 
 $ b 
出现以下错误：
 
 
  FAILURE ：构建失败，出现异常。 
 
 *其中：
构建文件'C：\whatever\build.gradle'行：1 
 
 *出错：
 A评估项目'MyCompany'出现问题。 
> java.lang.UnsupportedClassVersionError：com / android / build / gradle / AppPlugin：不支持major.minor版本52.0 
 
 *尝试：
使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获取更多日志输出。 
 
 BUILD FAILED 
  
我使用--stacktrace和--debug并且它确实不提供任何其他信息，除了将错误指向build.gradle的第一行： 
 
 
  apply plugin：'com.android.application'
  
我尝试了以下基于其他stackoverflow响应到这个错误：
 
 
 
 
升级到JavaVersion.VERSION_1_8 
 
 
添加Jack build.gradle（和这会降低所有内容的速度，但是对于1.8版本而言，即使它已被弃用，它也是必需的）
 
增加堆内存（ org.gradle.jvmargs = -Xmx4096m ）和dex（ javaMaxHeapSize4g）。
 
我正在运行 Android Studio 2.3.3  
 
 
 
这是我的 build.gradle 文件。为了节省空间，我只留下了几个口味，并且重新命名了一些保护无辜者的东西。如果这可能是问题，我已经留在依赖关系中了？唯一的乐趣是我正在重命名APK并将其推送到不同的文件夹，但是当我直接从Android Studio运行发布版本时，这一切都正常工作。  build.gradle ：
  apply plugin：'com.android。 '
 apply plugin：'io.fabric'
 
 buildscript {
 repositories {
 maven {url'https://maven.fabric.io/public' } 
} 
 
依赖关系{
 classpath'io.fabric.tools:gradle:1.+'
} 
} 
 
 repositories {
 maven {url'https://maven.fabric.io/public'} 
} 
 
 
 android {
 signingConfigs { 
 config {
 keyAlias'whatever'
 keyPassword'imnotgoingtotellyou'
 storeFile文件（'C：/whereever/mycompany.keystore'）
 storePassword'yeps'
 
 
 compileSdkVersion 25 
 buildToolsVersion '25 .0.3'
 defaultConfig {
 jackOptions {
 enabled true 
 additionalParameters（'jack .incremental'：'true'）
 } 
 applicationIdcom.mycompany.default
 minSdkVersion 14 
 targetSdkVersion 23 
 versionCode 44 
 versionName2.1.44
 compileOptions {
 sourceCompatibility JavaVersion.VERSION_1_8 
 targetCompatibility JavaVersion.VERSION_1_8} 
 signingConfig signingConfigs.config 
} 
 dexOptions {
 javaMaxHeapSize4g
} 
 buildTypes {
 release {
 minifyEnabled false 
 proguardFiles getDefaultProguardFile（'proguard-android.txt'），'proguard-rules.txt'
 signingConfig signingConfigs.config 
} 
} 
 productFlavors.whenObjectAdded {flavor  - > 
 flavor.ext.set（'directoryPath'，''）
 flavor.ext.set（'apkName'，''）
} 
 productFlavors {
 
 Flavor1 {
 signingConfig signingConfigs.config 
 directoryPath ='flavor1'
} 
 
 Flavor2 {
 applicationId'com.mycompany.flavor2'
 signingConfig signingConfigs.config 
 directoryPath ='flavor2'
} 
 
 applicationVariants.all {variant  - > 
 variant.outputs.each {输出 - > 
 def path =C：/AndroidBuilds/MyBuild.Build/+ variant.productFlavors [0] .directoryPath +/
 logger.error（Path =+ path）
 def SEP = - 
 def apkName = variant.productFlavors [0] .apkName 
 def flavor = variant.productFlavors [0] .name $ b $ if（apkName！=''）
 flavor = apkName; 
 def version = variant.versionCode 
 def newApkName = path + version + SEP + flavor 
 logger.error（newApkName =+ newApkName）
 output.outputFile = new File（ newApkName +.apk）
} 
} 
} 
 
依赖关系{
编译项目（'：androidpdfview100'）
编译' com.android.support:support-v13:25.3.1'
 compile'c​​om.google.code.gson：gson：2.7'
 compile'joda-time：joda-time：2.5'
编译'com.google.android.gms：play-services-maps：11.0.4'
编译文件（'libs / httpmime-4.2.5.jar'）
编译文件（'libs /itextg-5.4.4.jar'）
编译文件（'libs / js.jar'）
编译文件（'libs / logentries-android-2.1.1.jar'）
编译文件（'libs / universal-image-loader-1.8.6.jar'）
编译文件（'libs / xmlworker-5.4.4.jar'）
编译文件（'libs / zbar。 jar'）
 compile（'com.crashlytics .sdk.android：crashlytics：2.6.8@aar'）{
 transitive = true; 
} 
} 
  
 更新 
 
 
 
项目结构如下所示：
 
 
 
当我从Eclipse移植代码时，它是由Android Studio自动生成的：
 
 
 
  
 
 
 
像这样：
 
 
 
  
解决方案
对于将来面临此问题的任何人，为了确保您的 JAVAHOME 设置为JDK v8：
  JAVAHOME = C：\程序文件\Java\jdk1.8.0_112 
  
或者您的 1.8 JDK 是。这是一个野兽，并吸取记忆，但它是解决这个构建错误的唯一方法。我不建议你用1.8版本构建Android Studion，因为它似乎需要 Jack ，这只是很慢。可悲的是，它已被弃用启动。  
I have ported an app from Eclipse to Android Studio, implemented my needed flavors and have it allow working in Android Studio. Due to the number of flavors I would prefer to build it using command line Gradle. However when I run the following command to build my release APKs
gradlew.bat assembleRelease
I get the following error:
FAILURE: Build failed with an exception.

* Where:
Build file 'C:\whatever\build.gradle' line: 1

* What went wrong:
A problem occurred evaluating project ':MyCompany'.
> java.lang.UnsupportedClassVersionError: com/android/build/gradle/AppPlugin : Unsupported major.minor version 52.0

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

BUILD FAILED
I have run with --stacktrace and --debug and it really does not offer any other information, other than pointing the error to be with the first line of the build.gradle:
apply plugin: 'com.android.application'
I have attempted the following based on other stackoverflow responses to this error:

Upgraded to JavaVersion.VERSION_1_8
Added Jack the build.gradle (and that slowed everything down, but it was required for 1.8, even though it is deprecated?)
Increased memory for heap (org.gradle.jvmargs=-Xmx4096m) and dex (javaMaxHeapSize "4g").
I am running Android Studio 2.3.3

Here is my build.gradle file. I have left only a couple  of the flavors to save space, and renamed some of the stuff to protect the innocent. I have left in the dependencies in case that might be the problem? The only funkiness is that I am renaming the APK and pushing it to a different folder, but that is all working when I run the release build directly out of Android Studio. The build.gradle:
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'

buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.+'
    }
}

repositories {
    maven { url 'https://maven.fabric.io/public' }
}


android {
    signingConfigs {
        config {
            keyAlias 'whatever'
            keyPassword 'imnotgoingtotellyou'
            storeFile file('C:/whereever/mycompany.keystore')
            storePassword 'yeps'
        }
    }
    compileSdkVersion 25
    buildToolsVersion '25.0.3'
    defaultConfig {
        jackOptions {
            enabled true
            additionalParameters('jack.incremental': 'true')
        }
        applicationId "com.mycompany.default"
        minSdkVersion 14
        targetSdkVersion 23
        versionCode 44
        versionName "2.1.44"
        compileOptions {
            sourceCompatibility JavaVersion.VERSION_1_8
            targetCompatibility JavaVersion.VERSION_1_8        }
        signingConfig signingConfigs.config
    }
    dexOptions {
        javaMaxHeapSize "4g"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
            signingConfig signingConfigs.config
        }
    }
    productFlavors.whenObjectAdded { flavor ->
        flavor.ext.set('directoryPath', '')
        flavor.ext.set('apkName', '')
    }
    productFlavors {

        Flavor1 {
            signingConfig signingConfigs.config
            directoryPath = 'flavor1'
        }

        Flavor2 {
            applicationId 'com.mycompany.flavor2'
            signingConfig signingConfigs.config
            directoryPath = 'flavor2'
        }

    applicationVariants.all { variant ->
        variant.outputs.each { output ->
            def path = "C:/AndroidBuilds/MyBuild.Build/" + variant.productFlavors[0].directoryPath + "/"
            logger.error("Path = " + path)
            def SEP = "-"
            def apkName = variant.productFlavors[0].apkName
            def flavor = variant.productFlavors[0].name
            if (apkName != '')
                flavor = apkName;
            def version = variant.versionCode
            def newApkName = path + version + SEP + flavor
            logger.error("newApkName = " + newApkName)
            output.outputFile = new File(newApkName + ".apk")
        }
    }
}

dependencies {
    compile project(':androidpdfview100')
    compile 'com.android.support:support-v13:25.3.1'
    compile 'com.google.code.gson:gson:2.7'
    compile 'joda-time:joda-time:2.5'
    compile 'com.google.android.gms:play-services-maps:11.0.4'
    compile files('libs/httpmime-4.2.5.jar')
    compile files('libs/itextg-5.4.4.jar')
    compile files('libs/js.jar')
    compile files('libs/logentries-android-2.1.1.jar')
    compile files('libs/universal-image-loader-1.8.6.jar')
    compile files('libs/xmlworker-5.4.4.jar')
    compile files('libs/zbar.jar')
    compile('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') {
        transitive = true;
    }
}
UPDATE

The project structure looks like this:

It was generated automatically by Android Studio when I ported the code from Eclipse:



When you drill into the App itself it looks like this:

解决方案
For anyone facing this issue in the future, for the command line build make sure your JAVAHOME is set to JDK v8:
JAVAHOME=C:\Program Files\Java\jdk1.8.0_112
Or where ever your 1.8 JDK is. It is a beast and sucks up memory but it was the only way to get around this build error. I would NOT recommend that you build in Android Studion with 1.8 since it seems to require Jack which is just plain slow. And sadly it is deprecated to boot. 

                        
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