:transformClassesWithDexForDebug 错误构建离子应用程序

Question

我正在 ionic 上构建一个应用程序，当我运行它时：

        ionic build android

它给了我这个：

    :compileDebugSources UP-TO-DATE
:transformClassesWithDexForDebugjava.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        FAILED
        .....
        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main"

BUILD FAILED

Total time: 3.567 secs

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithDexForDebug'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files (x86)\Java\jdk1.7.0_79\bin\java.exe'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: Error code 1 for command: cmd with args: /s,/c,"C:\Users\ggfre\Desktop\primerapp\platforms\android\gradlew cdvBuildDebug -b C:\Users\ggfre\Desktop\primerapp\platforms\android\build.gradle -Dorg.gradle.daemon=true -Pandroid.useDeprecatedNdk=true"

我真的不知道还能做什么，我已经修改了gradle文件并重新安装了android sdk

Answer 1

尝试将 buildToolsVersion '24' 更改为 buildToolsVersion '23.0.2'

Answer 2

这是我的 gradle 文件：

android {
    compileSdkVersion 24
    buildToolsVersion '24'
    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
            jniLibs.srcDirs = ['libs']
        }
    }

    defaultConfig {
        versionCode cdvVersionCode ?: Integer.parseInt("" + privateHelpers.extractIntFromManifest("versionCode") + "0")
        applicationId privateHelpers.extractStringFromManifest("package")
        targetSdkVersion 21


        if (cdvMinSdkVersion != null) {
            minSdkVersion cdvMinSdkVersion
        }
    }

    lintOptions {
      abortOnError false;
    }

    compileSdkVersion cdvCompileSdkVersion
    buildToolsVersion cdvBuildToolsVersion

    if (Boolean.valueOf(cdvBuildMultipleApks)) {
        productFlavors {
            armv7 {
                versionCode defaultConfig.versionCode + 2
                ndk {
                    abiFilters "armeabi-v7a", ""
                }
            }
            x86 {
                versionCode defaultConfig.versionCode + 4
                ndk {
                    abiFilters "x86", ""
                }
            }
            all {
                ndk {
                    abiFilters "all", ""
                }
            }
        }
    } else if (!cdvVersionCode) {
      def minSdkVersion = cdvMinSdkVersion ?: privateHelpers.extractIntFromManifest("minSdkVersion")
      // Vary versionCode by the two most common API levels:
      // 14 is ICS, which is the lowest API level for many apps.
      // 20 is Lollipop, which is the lowest API level for the updatable system webview.
      if (minSdkVersion >= 20) {
        defaultConfig.versionCode += 9
      } else if (minSdkVersion >= 14) {
        defaultConfig.versionCode += 8
      }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

    if (cdvReleaseSigningPropertiesFile) {
        signingConfigs {
            release {
                // These must be set or Gradle will complain (even if they are overridden).
                keyAlias = ""
                keyPassword = "__unset" // And these must be set to non-empty in order to have the signing step added to the task graph.
                storeFile = null
                storePassword = "__unset"
            }
        }
        buildTypes {
            release {
                signingConfig signingConfigs.release
            }
        }
        addSigningProps(cdvReleaseSigningPropertiesFile, signingConfigs.release)
    }
    if (cdvDebugSigningPropertiesFile) {
        addSigningProps(cdvDebugSigningPropertiesFile, signingConfigs.debug)
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    // SUB-PROJECT DEPENDENCIES START
    debugCompile project(path: "CordovaLib", configuration: "debug")
    releaseCompile project(path: "CordovaLib", configuration: "release")
    // SUB-PROJECT DEPENDENCIES END
}

def promptForReleaseKeyPassword() {
    if (!cdvReleaseSigningPropertiesFile) {
        return;
    }
    if ('__unset'.equals(android.signingConfigs.release.storePassword)) {
        android.signingConfigs.release.storePassword = privateHelpers.promptForPassword('Enter key store password: ')
    }
    if ('__unset'.equals(android.signingConfigs.release.keyPassword)) {
        android.signingConfigs.release.keyPassword = privateHelpers.promptForPassword('Enter key password: ');
    }
}

gradle.taskGraph.whenReady { taskGraph ->
    taskGraph.getAllTasks().each() { task ->
        if (task.name == 'validateReleaseSigning') {
            promptForReleaseKeyPassword()
        }
    }
}