J2ME的学习－－编译出错

配置都做完了，做了一个简单的hello world，可编译总是出以下的错
Running with storage root DefaultGrayPhone
Running with locale: Chinese_People's Republic of China.936
Running in the identified_third_party security domain
java.lang.SecurityException: Application not authorized to access the restricted API
    at com.sun.midp.security.SecurityToken.checkIfPermissionAllowed(+40)
    at com.sun.midp.security.SecurityToken.checkIfPermissionAllowed(+7)
    at com.sun.midp.midletsuite.MIDletSuiteImpl.checkIfPermissionAllowed(+8)
    at com.sun.midp.midletsuite.Installer.getInstaller(+18)
    at com.sun.midp.dev.GraphicalInstaller.<init>(+367)
    at com.sun.midp.dev.GraphicalInstaller.<init>(+6)
    at java.lang.Class.runCustomCode(+0)
    at com.sun.midp.midlet.MIDletState.createMIDlet(+34)
    at com.sun.midp.midlet.Scheduler.schedule(+52)
    at com.sun.midp.main.Main.runLocalClass(+28)
    at com.sun.midp.main.Main.main(+80)
Execution completed.
3389758 bytecodes executed
24 thread switches
1666 classes in the system (including system classes)
17593 dynamic objects allocated (522376 bytes)
1 garbage collections (0 bytes collected)

后来发现是wirless toolkit Emulator的设置问题


图中Midlet的地方，要么空着，要么填程序名称。

将WTK目录下的audiodemo源代码复制到工程所在目录下，运行正常，如下：