错误类型：
Error:java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major错误解决
Error:java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
Error: at java.lang.ClassLoader.defineClass1(Native Method)
Error: at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
Error: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
Error: at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
Error: at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
Error: at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
Error: at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
Error: at java.security.AccessController.doPrivileged(Native Method)
Error: at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
Error: at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
Error: at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
Error: at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
Error: at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Error:Exception in thread "main"
Error:java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
Error: at java.lang.ClassLoader.defineClass1(Native Method)
Error: at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
Error: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
Error: at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
FAILURE: Build failed with an exception.
Error: at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
Error: at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
Error: at java.security.AccessController.doPrivileged(Native Method)
Error: at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
Error: at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
Error: at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
Error: at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
Error: at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Error:Exception in thread "main"
* What went wrong:
Execution failed for task ':app: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_67\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.
问题原因：android studio同jdk版本不匹配
解决方案：
1.重装Java JDK
2.buildToolsVersion"24.0.1" 降到 buildToolsVersion"23.0.3" 重新编译