Please help me about node manager and WLST .
when I want to run WLST in online mode and after i use connect command
for be online i give an error that said :

java.rmi.UnmarshalException: error unmarshalling arguments;

i use connect command with this syntax :
connect('%weblogic user name%','%weblogic password%')
url is localhost on 7001 so i don't write it.
if any body can help me answer it to me