In reply to Ramyas:
Syntax error messages can be very cryptic. Sometimes there is nothing wrong with the line it is pointing to, but there is a problem with the source text that comes just before it. The pre-processor is just going to inline all the `include files, so think only of the single stream of text that is being compiled.
So I’ll ask again, what source text comes before the `include statement in the stim.sv file?