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昨晚我刚刚下载了Ionic，我仍然试图让事情正常工作。这是在Windows上。我安装了离子，科尔多瓦，gradle，JDK等。试图模拟android的错误 - 第一个离子应用程序
我一直在搞它几个小时，但我很不熟悉这一切，我打了一堵墙。谁能帮忙？
C:\dev\firstIonicApp>ionic emulate android
Running command: "C:\Program Files\nodejs\node.exe" C:\dev\firstIonicApp\hooks\after_prepare\010_add_platform_class.js C:\dev\firstIonicApp
add to body class: platform-android
ANDROID_HOME=D:\Android\sdk
JAVA_HOME=C:\Program Files\Java\jdk1.7.0_79
Starting a new Gradle Daemon for this build (subsequent builds will be faster).
Incremental java compilation is an incubating feature.
:preBuild
UP-TO-DATE
:preDebugBuild
UP-TO-DATE
:checkDebugManifest
:CordovaLib:preBuild
UP-TO-DATE
:CordovaLib:preDebugBuild UP-TO-DATE
:CordovaLib:compileDebugNdk
UP-TO-DATE
:CordovaLib:compileLint
:CordovaLib:copyDebugLint
UP-TO-DATE
:CordovaLib:mergeDebugProguardFiles
UP-TO-DATE
:CordovaLib:packageDebugRenderscript
UP-TO-DATE
:CordovaLib:checkDebugManifest
:CordovaLib:prepareDebugDependencies
:CordovaLib:compileDebugRenderscript
UP-TO-DATE
:CordovaLib:generateDebugResValues
UP-TO-DATE
:CordovaLib:generateDebugResources
UP-TO-DATE
:CordovaLib:packageDebugResources
UP-TO-DATE
:CordovaLib:compileDebugAidl
UP-TO-DATE
:CordovaLib:generateDebugBuildConfig
UP-TO-DATE
:CordovaLib:mergeDebugShaders
UP-TO-DATE
:CordovaLib:compileDebugShaders
UP-TO-DATE
:CordovaLib:generateDebugAssets
UP-TO-DATE
:CordovaLib:mergeDebugAssets
UP-TO-DATE
:CordovaLib:processDebugManifest
UP-TO-DATE
:CordovaLib:processDebugResources
UP-TO-DATE
:CordovaLib:generateDebugSources
UP-TO-DATE
:CordovaLib:incrementalDebugJavaCompilationSafeguard
UP-TO-DATE
:CordovaLib:compileDebugJavaWithJavac
UP-TO-DATE
:CordovaLib:processDebugJavaRes
UP-TO-DATE
:CordovaLib:transformResourcesWithMergeJavaResForDebug
UP-TO-DATE
:CordovaLib:transformClassesAndResourcesWithSyncLibJarsForDebug
UP-TO-DATE
:CordovaLib:mergeDebugJniLibFolders
UP-TO-DATE
:CordovaLib:transformNative_libsWithMergeJniLibsForDebug
UP-TO-DATE
:CordovaLib:transformNative_libsWithSyncJniLibsForDebug
UP-TO-DATE
:CordovaLib:bundleDebug
UP-TO-DATE
:prepareAndroidCordovaLibUnspecifiedDebugLibrary
UP-TO-DATE
:prepareDebugDependencies
:compileDebugAidl
UP-TO-DATE
:compileDebugRenderscript
UP-TO-DATE
:generateDebugBuildConfig
UP-TO-DATE
:mergeDebugShaders
UP-TO-DATE
:compileDebugShaders
UP-TO-DATE
:generateDebugAssets
UP-TO-DATE
:mergeDebugAssets
UP-TO-DATE
:generateDebugResValues
UP-TO-DATE
:generateDebugResources
UP-TO-DATE
:mergeDebugResources
UP-TO-DATE
:processDebugManifest
UP-TO-DATE
:processDebugResources
UP-TO-DATE
:generateDebugSources
UP-TO-DATE
:incrementalDebugJavaCompilationSafeguard
UP-TO-DATE
:compileDebugJavaWithJavac
UP-TO-DATE
:compileDebugNdk
UP-TO-DATE
:compileDebugSources
UP-TO-DATE
:prePackageMarkerForDebug
:transformClassesWithDexForDebug
To run dex in process, the Gradle daemon needs a larger heap.
It currently has approximately 910 MB.
For faster builds, increase the maximum heap size for the Gradle daemon to more
than 2048 MB.
To do this set org.gradle.jvmargs=-Xmx2048M in the project gradle.properties.
For more information see https://docs.gradle.org/current/userguide/build_environment.html
java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main"
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main"
:transformClassesWithDexForDebug FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_79\bin\java.exe'' finished with non-zero exit value 1
* Try:
BUILD FAILED
Total time: 15.669 secs
Run with --stacktrace option to get the stack trace. Run with --info or --debug
option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main"
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Exception in thread "main"
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\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.