Engine Error - Could not load library client

Hello.
After lots of issues with hl2.exe not working, I finally got this game to work. I must say it is truly amazing, and I’ve enjoyed it enourmously. What I like most with this ‘mod’ is that Black Mesa now finally looks like a place to do research. All very credible. Nice work.

Now for the problem… About two days ago I wanted to play it through again, and when I Launched the game from Steam, I had to wait for it to update Black Mesa and the SDK. When it finished, I started the game and now I get this error:

Engine error
Could not load library client.

So…how do I fix this?

Same thing here. I used to play the mod just fine, now I can’t. Seems to have started after a SDK update, but not 100% sure.

The SDK Update broke it.

^ what he said

My SDK just updated as well and it broke.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.