GUIStudioMDL 2.2 broken?

GUIStudioMDL 2.2/Source - © 2007 Neil 'Jed' Jedrzejewski -

Added game config - "Garry's Mod"

Loaded QC file - "C:\Users\Olli\Desktop\working.qc"

Created command line: "C:\Program Files (x86)\Steam\steamapps\pennylane32\sourcesdk\bin\orangebox\bin\studiomdl.exe" -game C:\Users\Olli\Desktop -nop4 -nox360 C:\Users\Olli\Desktop\working.qc

AppFramework : Unable to load module C:\Program Files (x86)\Steam\steamapps\pennylane32\sourcesdk\bin\orangebox\bin\filesystem_steam.dll!
Unable to load C:\Program Files (x86)\Steam\steamapps\pennylane32\sourcesdk\bin\orangebox\bin\filesystem_steam.dll

Did the new garry’s mod update break everything or did i just do something wrong?
It compiled fine with the same .qc as yesterday.

Load up Source SDK. If it still gives you a problem after loading it up, refresh SDK content in the Source SDK.