[ns] ns-2.1b7a(new) problems again...

["kalyan vissa" <kvissa@hotmail.com>]

Hi all,
Sorry to send out this mail again, but i did'nt receive any replies to my 
earlier mail. I have recently started to use ns-2..version 
7(new)..ns-2.1b7a..no matter what i do, i still get the same error 
message....the error message below is for a tcl script that i wrote based on 
the example provided by Marc Greis in his tutorial....basic simulation of 2 
nodes with a duplex-link betn them and an UDP agent and a CBR source are 
connected to one of the nodes while a Null agent is connected to the other 
node...here is the error message...

trace: can't attach _o40 for writing
    (_o36 cmd line 1)
    invoked from within
"_o36 cmd attach _o40"
    invoked from within
"catch "$self cmd $args" ret"
    (procedure "_o36" line 2)
    (SplitObject unknown line 2)
    invoked from within
"$node attach $agent"
    (procedure "_o3" line 2)
    (Simulator attach-agent line 2)
    invoked from within
"$ns attach-agent $udp_0 $cbr_0"
    (file "simple.tcl" line 28)

I have set all path and ld_library_path vars exactly according to 
specifications.... what could be the problem? PLEASE HELP!!

Thank you,
kalyan

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