[ns] CRCN simulation problems

Using sudo java -jar CRCN.jar
Output results appeared in the terminal
good -when clicking buttons(start sim,confirm) in CRCN

But the problems appeared as follows:

1] (nam and tr) files are empty

2] tcl outut file when excuting
it using terminal tells me

(_o3 cmd line 1)

invoked from within

"_o3 cmd add-channel 0 _o13"

invoked from within

"catch "$self cmd $args"
ret"

invoked from within

"if [catch "$self cmd $args"
ret] {

set cls [$self info class]

global errorInfo

set savedInfo $errorInfo

error "error when calling class
$cls: $args" $..."

(procedure "_o3" line 2)

(SplitObject unknown line 2)

invoked from within

"$ns_ add-channel $i $chan_($i)"

("for" body line 2)

invoked from within

"for {set i 0} {$i <
$val(channum) } {incr i} {

$ns_ add-channel $i $chan_($i)

}"

(file "test1.tcl" line
43)

3] Throughput graph is empty
while terminal shows me

OUTPUT> 0

Process exitValue: 0

4] Interference graph is empty while
terminal shows me

Can't open file ITfile!

java.io.FileNotFoundException: ITfile
(No such file or directory)

Using: Ubuntu 11.10 with ns2.31
crcn patch installed

gnu plot installed and upgradedjava is installed and upgraded

Kindly waiting your reply soon.
Thanks for your time and conisderation.

Sincerely,Khaled Elmishad

Senior Student, Communication Engineering ASU-CHEP