Uhh, I just tried to run hammer but I got a wierd error saying this:
mountfilesystem (312) failed: SteamMountFilesystem(1074,312,0x11ecfc74=,0x11ecfd74) failed with error 5: No Steam Content Servers are avaliable.

The hammer application doesn't even appear, it just says this... Any ideas?

Same happens here with the Beta SDK and the regular SDK.

I was also getting this last night, the night I finally decide to get some mapping done. some sort of error on valves end. My guess is they'll get it fixed today. crosses fingers

Use the SDK while you're offline.

Offline won't work, you get a similar error:

MountFilesystem(312) failed: SteamMountFiles(2288,312,0x12acfc74=,0x12acfd74) failed with error 201: Cannot perform this operation when offline

It seems to be working again now

Ricotez wrote:
Offline won't work, you get a similar error

Offline won't work if you don't know how to make it work.
I'm using it every day with the beta SDK, and it works well.
(anyway, just kidding about this "how to make it work", I don't even know how I did it)

After a minor blip hammer is working again.

It seems I baught audiosurf at the right time

i think you haven't got one or more games or apps to launch it. i have orange box and i tried to launch gmod 9.1.0.4 and i got the same error =)

On the same topic as this, when I tried to compile my map I got an error saying that 'vbsp.exe' needs to close, but it doesn't close. When I go into portal, the map isn't there.

Any help?

EDIT: this happens right after it says "Building physics collision data... Done (0)"