GoogleAppEngine 增强器错误代码 1：

Question

我在尝试编译我的 GoogleAppEngine 项目时收到以下错误。我不是 GoogleAppEngine，也不确定在哪里可以解决这些通用声音错误。找不到自己解决问题的好资源。如果可以的话，请帮忙。

Information:Using javac 1.8.0_31 to compile java sources
Information:2/28/15 7:28 AM - Compilation completed with 3 errors and 0 warnings in 2 sec
        Error:Google AppEngine Enhancer: Encountered a problem: Unexpected exception
        Error:Google AppEngine Enhancer: java.lang.RuntimeException: Unexpected exception
        at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:76)
        at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:71)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.intellij.appengine.rt.EnhancerRunner.main(EnhancerRunner.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.intellij.rt.execution.CommandLineWrapper.main(CommandLineWrapper.java:130)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:74)
... 12 more
Caused by: java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
  at org.objectweb.asm.ClassReader.<init>(Unknown Source)
    at org.objectweb.asm.ClassReader.<init>(Unknown Source)
      at org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName(ASMClassEnhancer.java:272)
      at org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput(DataNucleusEnhancer.java:727)
      at org.datanucleus.enhancer.DataNucleusEnhancer.enhance(DataNucleusEnhancer.java:525)
      at org.datanucleus.enhancer.DataNucleusEnhancer.main(DataNucleusEnhancer.java:1258)
      ... 17 more
      Error:Google AppEngine Enhancer: Enhancement process terminated with exit code 1

Answer 1

我将 Project SDK 从 1.8 更改为 1.7 并正常工作。