Engine Error - Could not get IGameUI interface GameUI011 from client

[jonipasi]

http://i.imgur.com/INqGfOg.png
This error message pops up every time i try to open SFM by itself. I have to open SFM using the SDK launcher.
While this is a problem that I can just circumvent and start using SFM normally, I'd still like to know what has caused the problem and how it can be fixed.
Additional information: I have the Dota 2 models and particle effects in my SFM by using this guide: http://www.cyborgmatt.com/2012/07/dota-2-sfm-tutorial/
Any ideas?

[Pte Jack]

Can't help with the error, IDK what is causing that.

This is a step by step video of how to install the Dota stuff using a combination of both Cyborg-Matt's and Wyk's methods.

http://youtu.be/xkcaOTi-faw

In the description area of this video, I have listed out the .bat file required to create the missing .vtx files (if they are still required)

http://youtu.be/UP_QvuYJezU