Gfortran 13.2 downloaded from MyCentrePortal and installed, but PSCAD 5.1 cannot detect it. Screenshot attached. How can I fix this?

Hmm I have not seen this particular error before!

Can you send a screenshot of the installed compilers.

Application Options -> Dependencies -> Fortran Compiler -> Expand the down arrow and screen capture all installed compilers.

Also, do you have any other compiler installed. Do any of them work with an example case?