Hammer Isn't Making .PRT Files

I’m making a map with water in it; pretty standard, right? So, the minute I see no water, and just the skybox, I assume there’s a leak. After finding zero leaks, I move to the compile log. The compile log pops up with the following interesting lines:



LoadPortals: couldn't read c:\program files\steam\steamapps\********\garrysmod\garrysmod\maps\vmfs\********.prt


(Under the VVIS section)



No vis information, direct lighting only.


(Under the VRAD section)

As far as I understand, VVIS is crucial to rendering water, and VRAD for radiosity. So, I went into my VMF folder, and found that there isn’t even a .prt file in the first place for VVIS. When I tried getting Hammer to compile again, hoping that the .prt would show up, it did the same thing.

Help?

For some reason vvis is crashing. Check it over with this: http://www.interlopers.net/errors/

VVis isn’t running because VBsp isn’t generating a portal file for your map, probably because there is a leak. Post the compile log.

Nevermind guys, restarted Steam, booted up Hammer again, and all was fine…
Quirky little thing, isn’t it?