Engine Error....

When I start BMS I get the message “Engine Error: could not library client”

what did I do wrong?

I got the same problem…¡HELP!

Do you have Source SDK Base 2007 installed? Have you tried reinstalling it?

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.