invalid command name error

[Ahmed]

Hi,

I am running a TCL script and it throws me with the following error:

invalid command name "-llType"

            while executing

          "-llType $val(ll) \

Does anyone know what exactly this error mean and how it could be solved.

-Ahmed

[Basavaraj Bidnoor]

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[knudfl]

The usual cause of ""invalid command name "-llType" : is when you have a <space> after \ , like
-llType $val(ll) \<space>

Should be OK, when all <space> after all the backslash's are deleted.

-

[Ahmed]

Thanks Knudfl,

It worked.

-Ahmed

[hhars...@gmail.com]

Hi,

I am running a tcl script on NS2 and I get this error.

invalid command name "Agent/RfidReader"
    while executing
"Agent/RfidReader create _o98 "
    invoked from within
"catch "$className create $o $args" msg"
    invoked from within
"if [catch "$className create $o $args" msg] {
if [string match "__FAILED_SHADOW_OBJECT_" $msg] {
delete $o
return ""
}
global errorInfo
error "class $..."
    (procedure "new" line 3)
    invoked from within
"new Agent/RfidReader"
    invoked from within
"set reader1 [new Agent/RfidReader]"

I'm using NS-2.35 on ubuntu 16.04. 

Please help me resolving this error. 

[knudfl]

Hi.

These are the default simulations with "Agent/RfidReader" :

$ cd cenario/
$ grep -Rin RfidReader *
artigo3.2013/collisions/col.2.45.02/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.2.45.03/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.eom.03/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.eom.04/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.eom.05/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.eom.08/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.eom.16/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.lb.02/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.lb.03/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.q.03/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.q.04/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.q.05/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.sch.04/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.sch.05/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/collisions/col.sch.08/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/eom.128/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/eom.64/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/prop.est/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/schoute.128/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
artigo3.2013/schoute.64/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
prop.edfsa/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
prop.edfsa.2/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
proposed/rfid_est.tcl:92:set reader1 [new Agent/RfidReader]
sbrc2013/cenario1.tcl:108:set reader1 [new Agent/RfidReader]
sbrc2013/cenario1.tcl:109:set reader2 [new Agent/RfidReader]
sbrc2013/cenario1.tcl:110:set reader3 [new Agent/RfidReader]
sbrc2013/cenario2.tcl:117:set reader1 [new Agent/RfidReader]
sbrc2013/cenario2.tcl:118:set reader2 [new Agent/RfidReader]
sbrc2013/cenario2.tcl:119:set reader3 [new Agent/RfidReader]
sbrc2013/cenario2.tcl:120:set reader4 [new Agent/RfidReader]
sbrc2013/cenario2.tcl:121:set reader5 [new Agent/RfidReader]
simulacoes.antigas/rfid.tcl:92:set reader1 [new Agent/RfidReader]
simulacoes.antigas/rfid2.tcl:83:set reader1 [new Agent/RfidReader]
simulacoes.antigas/tracking.tcl:110:set reader1 [new Agent/RfidReader]
simulacoes.antigas/tracking.tcl:111:set reader2 [new Agent/RfidReader]
simulacoes.antigas/tracking.tcl:112:set reader3 [new Agent/RfidReader]
testes/rfid.tcl:92:set reader1 [new Agent/RfidReader]
testes/rfid2.tcl:83:set reader1 [new Agent/RfidReader]
testes/rfid_2.tcl:92:set reader1 [new Agent/RfidReader]
testes/tracking.tcl:109:set reader1 [new Agent/RfidReader]
testes/tracking.tcl:110:set reader2 [new Agent/RfidReader]
testes/tracking.tcl:111:set reader3 [new Agent/RfidReader]

Using the examples requires an ns-2.35 patched with "RfidReader".

Your error : Seems you are using an executable 'ns' with no RfidReader included.

Build ns-2.35 + RfidReader ....

$ tar xvf ns-allinone-2.35_gcc482.tar.gz   // This is the Oct 2014 update
https://drive.google.com/file/d/0B7S255p3kFXNSGJCZ2YzUGJDVk0/view?usp=sharing
$ cd ns-allinone-2.35/
$ zcat rfid.read_ns235.patch | patch -p0
https://drive.google.com/file/d/0B7S255p3kFXNTlFfZjRjNnpSM1U/view?usp=sharing
$ ./install
$ cd ns-2.35/
$ cp ns ns235-rfid-read    // This is your backup
$ sudo make install    // 'make install' will copy the executable 'ns' to /usr/local/bin/
sudo cp ns235-rfid-read /usr/local/bin/

--------- Simulation example ------------
ns rfid.tcl rfid.tr 100  
or
ns235-rfid-read rfid.tcl rfid.tr 100

[harshini harikrishnan]

This is what I'm getting sir. When I try to build ns2 with rfid it says patch already exists. How to proceed?

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Regards,

Harshini Harikrishnan

[knudfl]

@harshini harikrishnan.

First :  Images with text are not accepted.  I guess you know how to copy-paste a text.

About your error : You are not supposed to use the default "ns" command, but the ns235-rfid-read ( in /usr/local/bin/ ) ..... Please read the previous post carefully.


ns2-INFO.txt https://drive.google.com/file/d/1FCjn-9fkR7tKeqClUpHsleaEdnoKRZzq/view?usp=sharing : Please read.