[Tsung] Dynamic Variables

[Gus Miraglia]

I am currently using tsung-1.2.1 on my fedora linux box.  I can perform
dynamic substitutions with my own erlang module, but as soon as I try to
create a dynamic variable I get the following error no matter what I do.

532- fatal: {failed_validation,{element,
                                   dyn_variable,
                                   isnt_comprise_in_the_rule}}
["Config Error, aborting !
",{fatal,{{failed_validation,{element,dyn_variable,isnt_comprise_in_the_rule}},{file,"/home/Gus/.tsung/tsung.xml"},{line,319},{col,1}}}]

Currently all I have added to my config file is the following line.

<dyn_variable name="referurl"></dyn_variable>

where referurl is just a hidden item in my html form.  An entire session
block that throws this error is shown below:

<sessions>
  <session name="http-example" probability="100" type="ts_http">
    <request>
     <http url="http://localhost/items.html" method="GET" version="1.1
"></http>
     <dyn_variable name="referurl"></dyn_variable>
    </request>
  </session>
 </sessions>

Any ideas as to what could be causing this?  Am I missing something simple?

Thanks,
Gus
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