I published a map to the workshop a few months ago, and I was unattentive enough to overlook a major detail. I fixed the vmf and compiled it into a bsp, but the p2map_publish tool encountered some type of error. Whenever I try to open it, an error window appears saying "Steam must be running for this application to function!". I'm really confused about this, because it worked last time I used it, and I haven't updated the Portal 2 Authoring Tools Beta since then. I've tried deleting the Authoring Tools and redownloading them, but nothing's worked. I also tried verifying the game cache. What should I do? I've seen a couple other posts with this problem, but I'm still not sure what to do.

Noone can use it at the moment, same error for a week now.

DaMaGepy wrote:
Noone can use it at the moment, same error for a week now.

Is there any way to bypass it?

Not as far as we know. People are searching for workarounds.

Seems to work fine for me, but maybe that's a perk of still using windows XP as my main computer

as I checked with different dll call, it may only happen on 64bit systems
Do you have 32 bit WinXP?

This thread already exists: mapping-help/p2map-publish-tool-not-launching-t10664.html