can’t read “ragent_”: no such variable

Hi,

I’m using DSR routing protocol in a wired-cum-wireless simulation and I
am having the following problem:
can’t read “ragent_”: no such variable while executing “subst $[subst $var”

Could you please tell how to set up this variable and solve this
problem?

I got this problem for a long time and couldn’t solve it. I´ve searched and no one says the solution

Thanks for your help.

Luís