The crtrp function from the genetic-toolbox doesn't work

Whenever I try to run the code, it gives me an erorr saying:

Error: File: crtrp.m Line: 34 Column: 19
"nargin" previously appeared to be used as a function or command,
conflicting with its use here as the name of a variable.
A possible cause of this error is that you forgot to initialize the
variable, or you have
 initialized it implicitly using load or eval.

I attached the m.file of crtrp

Answer 1

[Walter Roberson]

Line 34 can be deleted.