Problème exécution J2ME/Eclipse

je crée un fichier xml en utilisant jdom sous eclipse, mais lors de l'execution ca me donne ce message :

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Launch configuration context references non-existing project context.

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et quand je debug ca me donne ca :

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Failed to connect to remote VM. Connection refused.
java.net.ConnectException: Connection refused: connect
java.net.PlainSocketImpl.socketConnect(Native Method)
java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:364)
java.net.Socket.connect(Socket.java:507)
java.net.Socket.connect(Socket.java:457)
java.net.Socket.<init>(Socket.java:365)
java.net.Socket.<init>(Socket.java:178)
org.eclipse.jdi.internal.connect.SocketTransportImpl.attach(SocketTransportImpl.java:47)
org.eclipse.jdi.internal.connect.SocketAttachingConnectorImpl.attach(SocketAttachingConnectorImpl.java:103)
org.eclipse.jdt.internal.launching.SocketAttachConnector.connect(SocketAttachConnector.java:131)
org.eclipse.jdt.internal.launching.JavaRemoteApplicationLaunchConfigurationDelegate.launch(JavaRemoteApplicationLaunchConfigurationDelegate.java:75)
org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:569)
org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:788)
org.eclipse.debug.internal.ui.DebugUIPlugin$6.run(DebugUIPlugin.java:955)
org.eclipse.core.internal.jobs.Worker.run(Worker.java:66)

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quelqu'un peut m'aider svp ?
merci d'avance