An internal error occurred during: "Launching hello". java.lang.NullPointerException

Error
Tue Nov 30 09:34:51 CST 2010
An internal error occurred during: "Launching hello".

java.lang.NullPointerException
    at com.android.ide.eclipse.adt.internal.launch.AndroidLaunchController.launch(Unknown Source)
    at com.android.ide.eclipse.adt.internal.launch.LaunchConfigDelegate.doLaunch(Unknown Source)
    at com.android.ide.eclipse.adt.internal.launch.LaunchConfigDelegate.launch(Unknown Source)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:853)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:866)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1069)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

 

解决方法：

 

 

选择手动，或者自动指定一个AVD