Hi,

You might want to check out the reasons behind Tcl error messages from the link 
below:

- General error message interpretation: 
http://www.ns2ultimate.com/post/419191200/tcl-error-message-in-ns2

To fix the error, please read the following posts:

- Invalid command name: 
http://www.ns2ultimate.com/post/995668627/error-message-invalid-command
- To add new OTcl class: 
http://www.ns2ultimate.com/post/689847378/c-and-otcl-linkage-binding-c-and-otcl-classes
- To add an OTcl command: 
http://www.ns2ultimate.com/post/801303612/c-and-otcl-linkage-otcl-commands-getting-started
- To add a new module: 
http://www.ns2ultimate.com/post/454001969/including-new-modules-into-ns-2


Best Wishes,

Teerawat Issariyakul
http://www.ns2ultimate.com/
http://www.facebook.com/pages/Teerawat-Issariyakul/358240861417
http://twitter.com/T_Bear
http://www.t-issariyakul.blogspot.com
http://www.ece.ubc.ca/~teerawat



On Jun 3, 2011, at 11:31 PM, Ghofrane wrote:

> 
> 
> 
> Hi,
> After adding a new protocol, you should type make than you should type make 
> install as a root. If you do so, you won't have this error.
> 
> 
> ________________________________
> From: N_F <negin1...@gmail.com>
> To: ns-users@ISI.EDU
> Sent: Friday, June 3, 2011 10:24 AM
> Subject: [ns] Please help me with this error
> 
> 
> Hi all,
> 
> I have  an agent implemented in ns which used to work properly before, but
> now when I am trying to run different tcl files I m getting the same error
> as below:
> ns:
> [code omitted because of length]
> : invalid command name "Agent/hoperaa"
>     while executing
> "Agent/hoperaa set packetSize_ 40"
> 
> Does anyone have an idea about this error?
> 
> Thanks in advance,
> /Negin
> 


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