java - 如何摆脱 java.lang.RuntimeException : Unable to locate the App Engine agent in Eclipse Helios?

Question

   java.lang.RuntimeException: Unable to locate the App Engine agent. Please use        dev_appserver, KickStart,  or set the jvm flag: "-javaagent:<sdk_root>/lib/agent/appengine-agent.jar"
at com.google.appengine.tools.development.DevAppServerFactory.testAgentIsInstalled(DevAppServerFactory.java:102)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:77)
at com.google.appengine.tools.development.DevAppServerFactory.createDevAppServer(DevAppServerFactory.java:38)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:154)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:113)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)
  Caused by: java.lang.NoClassDefFoundError: com/google/appengine/tools/development/agent/AppEngineDevAgent
at com.google.appengine.tools.development.DevAppServerFactory.testAgentIsInstalled(DevAppServerFactory.java:98)
... 6 more
   Caused by: java.lang.ClassNotFoundException:    com.google.appengine.tools.development.agent.AppEngineDevAgent
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 7 more

我在谷歌上搜索，他们要求更改 VM 参数。这些答案不适用于我的 eclipse 。可能是因为这些答案是针对旧版本的 Eclipse 的。谁能帮我解决这个问题？

提前致谢。

Answer 1

转到您的项目属性 > java 构建路径 > 编辑您的应用引擎 sdk 并进行配置。在那里添加最新的sdk，问题将得到解决。