Visual Studioは、私はこのチュートリアルを使用して、Visual Studioの2015年Ionic2でアプリケーションを構築しよう

Question

Androidデバイス上Ionic2アプリケーションを実行します。リップルエミュレータ上でアプリケーションを実行

https://taco.visualstudio.com/en-us/docs/tutorial-ionic2/

は問題なく動作しますが、ときに私VSエミュレータで試してみるか、私のデバイスではエラーの長いリストが表示されます。

Androidスタジオからは、デバイスに問題なくAppsを実行できました。

出力リストは、ここで完全にそれを見つけることができ、非常に長いです：

出力：

1>MSBUILD : cordova-build error : java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0 
1> java.lang.UnsupportedClassVersionError com/android/dx/command/Main : Unsupported major.minor version 52.0 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.defineClass1(Native Method) 
1>  at java.lang.ClassLoader.defineClass1(Native Method) 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.defineClass(ClassLoader.java:800) 
1>  at java.lang.ClassLoader.defineClass(ClassLoader.java:800) 
1>MSBUILD : cordova-build error : at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
1>  at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) 
1>  at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) 
1> :transformClassesWithDexForRelease FAILED 
1> 
1> BUILD FAILED 
1> Total time: 5.223 secs 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader.access$100(URLClassLoader.java:71) 
1>  at java.net.URLClassLoader.access$100(URLClassLoader.java:71) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader$1.run(URLClassLoader.java:361) 
1>  at java.net.URLClassLoader$1.run(URLClassLoader.java:361) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
1>  at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
1>MSBUILD : cordova-build error : at java.security.AccessController.doPrivileged(Native Method) 
1>  at java.security.AccessController.doPrivileged(Native Method) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
1>  at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.loadClass(ClassLoader.java:425) 
1>  at java.lang.ClassLoader.loadClass(ClassLoader.java:425) 
1>MSBUILD : cordova-build error : at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) 
1>  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
1>  at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
1>MSBUILD : cordova-build error : at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482) 
1>  at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482) 
1>MSBUILD : cordova-build error : Picked up _JAVA_OPTIONS: -Xmx512M 
1> Picked up _JAVA_OPTIONS: -Xmx512M 
1>MSBUILD : cordova-build error : Exception in thread "main" 
1> Exception in thread "main" 
1>MSBUILD : cordova-build error : java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0 
1> java.lang.UnsupportedClassVersionError com/android/dx/command/Main : Unsupported major.minor version 52.0 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.defineClass1(Native Method) 
1>  at java.lang.ClassLoader.defineClass1(Native Method) 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.defineClass(ClassLoader.java:800) 
1>  at java.lang.ClassLoader.defineClass(ClassLoader.java:800) 
1>MSBUILD : cordova-build error : at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
1>  at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) 
1>  at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader.access$100(URLClassLoader.java:71) 
1>  at java.net.URLClassLoader.access$100(URLClassLoader.java:71) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader$1.run(URLClassLoader.java:361) 
1>  at java.net.URLClassLoader$1.run(URLClassLoader.java:361) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
1>  at java.net.URLClassLoader$1.run(URLClassLoader.java:355) 
1>MSBUILD : cordova-build error : at java.security.AccessController.doPrivileged(Native Method) 
1>  at java.security.AccessController.doPrivileged(Native Method) 
1>MSBUILD : cordova-build error : at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
1>  at java.net.URLClassLoader.findClass(URLClassLoader.java:354) 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.loadClass(ClassLoader.java:425) 
1>  at java.lang.ClassLoader.loadClass(ClassLoader.java:425) 
1>MSBUILD : cordova-build error : at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) 
1>  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) 
1>MSBUILD : cordova-build error : at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
1>  at java.lang.ClassLoader.loadClass(ClassLoader.java:358) 
1>MSBUILD : cordova-build error : at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482) 
1>  at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482) 
1>MSBUILD : cordova-build error : Picked up _JAVA_OPTIONS: -Xmx512M 
1> Picked up _JAVA_OPTIONS: -Xmx512M 
1>MSBUILD : cordova-build error : Exception in thread "main" 
1> Exception in thread "main" 
1> 
1>MSBUILD : cordova-build error : FAILURE: Build failed with an exception. 
1> FAILURE: Build failed with an exception. 
1> 
1>MSBUILD : cordova-build error : * What went wrong: 
1> * What went wrong: 
1>MSBUILD : cordova-build error : Execution failed for task ':transformClassesWithDexForRelease'. 
1> Execution failed for task ':transformClassesWithDexForRelease'. 
1>MSBUILD : cordova-build error : > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files (x86)\Java\jdk1.7.0_55\bin\java.exe'' finished with non-zero exit value 1 
1> > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files (x86)\Java\jdk1.7.0_55\bin\java.exe'' finished with non-zero exit value 1 
1> 

エラー出力：

http://pastebin.com/UYhXnjFm

これは、出力ログからいくつかのエントリです

 at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) 
TS2664 Invalid module name in augmentation, module '../../Observable' cannot be found. 
    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.defineClass(ClassLoader.java:800) 
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
    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) 
    Picked up _JAVA_OPTIONS: -Xmx512M 
    Exception in thread "main" 
    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.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) 
    Picked up _JAVA_OPTIONS: -Xmx512M 
    Exception in thread "main" 
    FAILURE: Build failed with an exception. 
    * What went wrong: 
    Execution failed for task ':transformClassesWithDexForRelease'. 
    > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files (x86)\Java\jdk1.7.0_55\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 code 1 for command: cmd with args: /s,/c,"D:\Dropbox\Entwicklung\VS\evmwi\evmwi\platforms\android\gradlew cdvBuildRelease -b D:\Dropbox\Entwicklung\VS\evmwi\evmwi\platforms\android\build.gradle -Dorg.gradle.daemon=true -Pandroid.useDeprecatedNdk=true" 

Answer 1

エラーが見つかりました。xamarinはJDK 1.7を指していましたが、 ds 1.8

ツール - >オプション - > Xamarin - > Android - > Java開発キットの場所

の設定を変更します。