Erro ao tentar usar Debuger do Netbeans 6.8

Olá pessoal estou tendo o seguinte problema, quando tento utilizar o Debug do Netbeans 6.8 (uso Debian Squeeze com a Versão do Netbeans só com java aquele de 50Mb) aparece a seguinte mensagem:

debug:

Have no FileObject for /usr/lib/jvm/java-6-sun-1.6.0.16/jre/lib/sunrsasign.jar

Have no FileObject for /usr/lib/jvm/java-6-sun-1.6.0.16/jre/classes

ERROR: transport error 202: connect failed: Connection refused

FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)

ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)

JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized […/…/…/src/share/back/debugInit.c:690]

Java Result: 134

BUILD SUCCESSFUL (total time: 0 seconds)

Se alguém puder me ajudar fico grato !!!!