Gmod launch error!

I have been recently playing Garry’s Mod and just today, after I tried to restart my singleplayer, it froze. I tried to start it up again and this error pops up every time!

SteamStartup() failed: SteamStartup(0xf,0x0017E584)failed with error 1: failed to take master pipe connection lock

Please help!

Tried restarting Steam? Not just GMod?


If that doesn’t help, go to C:/Program Files/Steam/ and delete “ClientRegistry.blob” then Launch Steam.

Try restarting your computer.

Alright, that did the trick. Also, my friend has a bug too. When he shoots or hits an npc, it crashes on him and he goes offline. :frown: