问安装了ME SDK 3.0.5后，无法运行旧的java SE应用程序

EN

我安装了Java ME SDK 3.0.5来创建MIDlets，但是一旦它插入到NetBeans中，我就不能运行以前还不错的SE应用程序。例如，我收到错误消息

C:\Documents and Settings\user\.netbeans\7.0\var\cache\executor-snippets\run.xml:52: C:\Documents and Settings\user\My Documents\NetBeansProjects\Hw2_1\work is not a valid directory at org.apache.tools.ant.taskdefs.Java.setupWorkingDir(Java.java:855) at org.apache.tools.ant.taskdefs.Java.setupExecutable(Java.java:825) at org.apache.tools.ant.taskdefs.Java.fork(Java.java:788) at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:214) at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135) at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291) at sun.reflect.GeneratedMethodAccessor61.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:390) at org.apache.tools.ant.Target.performTasks(Target.java:411) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399) at org.apache.tools.ant.Project.executeTarget(Project.java:1368) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1251) at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:284) at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:539) at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:153) Java Result: -1

来自一个之前运行良好的应用程序。是什么导致了这种情况呢？