Did you put a call to start the PRS in main.c? Most components won't do anything until they are explicitly started. Clocks are start-on-reset unless otherwise configured, so you should only need the PRS to be started.
Also, if you right-click on a component (either in the schematic or in the catalog), you can pull up a code example. They're usually helpful, although the one for the PRS is interestingly complex.
Side note, it would be nice if you explained what you did to get past the executable problem:
https://xkcd.com/979/