I am beginner in OpenSTA Tool, Require a clarification regarding Modular test structure.

when I am working on Modular Test Structure, the compilation is getting failed when I am modelling the second script to run in sequence by assigning the session id to cookie variable.
The compilation error is unable to find the variable sessionid even i declared the variable in Globalvariables.inc.
Can anyone please clarify me regarding the scripts modeling to by developing a modular test structure to run the scripts in sequence?

Thanks in Advance....