Export .phy model problem

When i export portal button base model i got this :

STATUS: Unable to load D:\Program files\steam\steamapps<MyUsername>\Sourcesdk\bin\ep1\bin\vpysics.dll
physics information will not be dumped.

I got this and i cant make button custom with normal physics model.Help !!!

Hey genius, try telling us what program you’re using, for a start.