[SOLVED] problem with ns2

MounaRM · 11-30-2010, 03:05 AM

hi everyone ,

The command "ns wireless.tcl " result the following error :

(_o15 cmd line 1)
invoked from within
"_o15 cmd addr"
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 "_o15" line 2)
(SplitObject unknown line 2)
invoked from within
"_o15 addr"
("eval" body line 1)
invoked from within
"eval $node addr $args"
("default" arm line 2)
invoked from within
"switch -exact $routingAgent_ {
DSDV {
set ragent [$self create-dsdv-agent $node]
}
DSR {
$self at 0.0 "$node start-dsr"
}
AODV {
set ragent [$self cre..."
(procedure "_o4" line 14)
(Simulator create-wireless-node line 14)
invoked from within
"_o4 create-wireless-node"
("eval" body line 1)
invoked from within
"eval $self create-wireless-node $args"
(procedure "_o4" line 23)
(Simulator node line 23)
invoked from within
"$ns node"
("for" body line 2)
invoked from within
"for {set i 0} {$i <$val(nn) } { incr i } {
set node_($i) [$ns node]
$node_($i) random-motion 0 ;# disable random motion
# On détermine la positi..."

can anyone help me ?
Thanks

knudfl · 12-01-2010, 12:52 PM

cd ns-allinone-2.34/ns-2.34/tcl/ex/

'ns wireless.tcl' : I get this result ..

Code:

num_nodes is set 50
INITIALIZE THE LIST xListHead
Loading connection pattern...
Loading scenario file...
Load complete...
Starting Simulation...
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5,  distCST_ = 550.0
SORTING LISTS ...DONE!
NS EXITING...

.. And a file ' out.tr ', 2.1 MB is created.
..

MounaRM · 12-02-2010, 03:17 AM

first, I want to thank you knudfl for your attention.
Second , the file wireless.tcl isn't the same file ns-allinone-2.34/ns-2.34/tcl/ex/ .
finally , now when I try to execute any file .tcl with ns2 i find this error :

ns:
[code omitted because of length]
: invalid command name "Agent/Ant"
while executing
"Agent/Ant set accessible_var_ true"

the previous error did'nt show again !! ( I really don't know why) !!!

knudfl · 12-02-2010, 08:45 AM

The tests, I made ( post #2 ) will show the same result using
either the ns-allinone-2.34/ns-2.34/ns ... or the one installed
with 'sudo apt-get install ns2' → → /usr/bin/ns (from ns-2.35).
....

Quote:

[code omitted because of length]

This indicates, that you are using the ns from ns-2.34,
and that it was compiled with a wrong tcl / tk.

Solution :
sudo apt-get remove tcl8.4-dev tk8.4-dev tcl8.5-dev tk8.5-dev
.. and may be also remove tcl8.4 tk8.4 tcl8.5 tk8.5

And then start from scratch with ns-allinone-2.34 in a new folder.
..

MounaRM · 12-03-2010, 03:36 AM

Hi knudfl ,

I've done everything you told me to do :
1)remove tcl8.4-dev tk8.4-dev tcl8.5-dev tk8.5-dev
2)remove tcl8.4 tk8.4 tcl8.5 tk8.5
3)reinstall ns-allinone-2.34 in a new folder

But still having the same error :
ns:
[code omitted because of length]
: invalid command name "Agent/Ant"
while executing
"Agent/Ant set accessible_var_ true"

knudfl · 12-03-2010, 07:19 AM

Well, you will have to show an example of a file.tcl,
that will reply with the error message :
' : invalid command name "Agent/Ant" '

Also suggest :
Please try out the command : /usr/bin/ns file.tcl
to test the ns installed with 'sudo apt-get install ns2'
..

MounaRM · 12-04-2010, 03:18 AM

well , the error is generated when I try ns anyfile.tcl

knudfl · 12-05-2010, 12:42 AM

Will have a look at your text in post # 7 ,
when you have used the "Edit" button and added code tags :
[/code] at the end of "code" , and [code] where the code starts.
http://www.linuxquestions.org/questi....php?do=bbcode

( When you have a long "code text", suggest :
It can be attached as e.g. name.tcl.txt, by using the paper clip button
in the 'Advanced editor'.)
...

How is '/usr/bin/ns file.tcl' working ? ?

That's the command installed with 'sudo apt-get install ns2'.
...

Alternative to ns-allinone-2.34 : Set up an ns-allinone-2.35 :
You can have as many ns2 versions, as you want.
http://www.isi.edu/nsnam/dist/release/
> http://www.isi.edu/nsnam/dist/releas....35-RC7.tar.gz
> > ns-allinone-2.35-RC7.tar.gz
.

MounaRM · 12-06-2010, 04:51 AM

when I installed the ns with the commande sudo apt-get install ns2 the /usr/bin/ns file.tcl is working with the other exemples , but mine (wireless.tcl) is'nt working , actually , I find this error :

~/Bureau/ns_tuto$ /usr/bin/ns wireless.tcl
num_nodes is set 100

(_o15 cmd line 1)
invoked from within
"_o15 cmd addr"
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 "_o15" line 2)
(SplitObject unknown line 2)
invoked from within
"_o15 addr"
("eval" body line 1)
invoked from within
"eval $node addr $args"
("default" arm line 2)
invoked from within
"switch -exact $routingAgent_ {
DSDV {
set ragent [$self create-dsdv-agent $node]
}
DSR {
$self at 0.0 "$node start-dsr"
}
AODV {
set ragent [$self cre..."
(procedure "_o4" line 14)
(Simulator create-wireless-node line 14)
invoked from within
"_o4 create-wireless-node"
("eval" body line 1)
invoked from within
"eval $self create-wireless-node $args"
(procedure "_o4" line 23)
(Simulator node line 23)
invoked from within
"$ns node"
("for" body line 2)
invoked from within
"for {set i 0} {$i <$val(nn) } { incr i } {
set node_($i) [$ns node]
$node_($i) random-motion 0 ;# disable random motion

}"
(file "wireless.tcl" line 56)

but I have to install the protocol first ( I have the code of the protocol , and the readme file says that I need to copy the code in the ns2 directory , for me ~/Bureau/ns-allinone-2.34/ns-2.34 ) but now I am working , as uou said , with /usr/bin/ns , how do I find the appropriate ns directory ?

knudfl · 12-06-2010, 09:16 AM

Quote:

But I have to install the protocol first ( I have the code of the protocol,
and the readme file says that I need to copy the code in the ns2 directory

Which protocol ? Please show a direct link to the code.

And please attach your file wireless.tcl as wireless-Xxx.tcl.txt :
The "paper clip" tool in the 'Advanced editor' is used for that.
..

MounaRM · 12-06-2010, 01:54 PM

Actually the protocol was implemented by a friend , I just want to test it .

knudfl · 12-06-2010, 02:11 PM

Code:

"source.orig ~/Bureau/protocole_routage_colonies_de_fourmis/simulation/random_scenario.ns_params"

Well, the wireless.tcl.txt looks for this file.
I guess, you will have to attach the file :
'protocole_routage_colonies_de_fourmis/simulation/random_scenario.ns_params'

( + other files (if any) concerning the "new protocol.)

..

MounaRM · 12-10-2010, 06:17 AM

The source of the error was in the makefile ,
the protocol was not defined in the makefile

deVacto · 10-27-2012, 11:29 AM

hi guys
i got the same problem, the error says

Code:

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

the error occure when the string i set other the 0 in

Code:

set numberClass0 2

in line 11, but when 0 wether qos on or off it got the result
the file tcl i already attach it

this the full error it says

Code:

(_o5 cmd line 1)
    invoked from within
"_o5 cmd at 40.0 {_o546 stop} 93"
    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 "_o5" line 2)
    (SplitObject unknown line 2)
    invoked from within
"_o5 at 40.0 {_o546 stop} 93"
    ("eval" body line 1)
    invoked from within
"eval $scheduler_ at $args"
    (procedure "_o3" line 3)
    (Simulator at line 3)
    invoked from within
"$ns at 40.0 "$cbrS($i) stop" 93 "
    ("for" body line 21)
    invoked from within
"for { set i 0} {$i<$numberClass0} {incr i} { 
 set null($i) [new Agent/Null] 
 set nullS($i) [new Agent/Null] 
 $ns attach-agent $UE($i) $null($i) 
 $..."
    (file "ltezi.tcl" line 65)

where it go wrong, how to fix it?
tq for your help

rana_abdallah · 09-23-2014, 09:38 AM

Hey
I have to simulate umts code on ns2.30.
I've got this error:
$ ns umts.tcl

(_o3 cmd line 1)
invoked from within
"_o3 cmd create-Umtsnode"
invoked from within
"catch "$self cmd $args" ret"
invoked from within
"if [catch "$self cmd $args" re
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error "error when calling class
(procedure "_o3" line 2)
(SplitObject unknown line 2
invoked from within
"$ns create-Umtsnode"
invoked from within
"set rnc [$ns create-Umtsnode]"
(file "umts.tcl" line 31)

how can i solve it?