Unable to find some essential data..

I'm out of my mind.. i can't play FM 2013!! I've just bought it and i can't play. Everytime i finished the installation it going in error "Unable to find some essential data".. that's a disgrace!!! On my PC work FM10-11-12-13(demo) and not the final edition? I'm upset.. maybe you can help me?! I already tried to do usual procedures like delete cache or run fm.exe/steam in compatible mode but it goin' to don't work..

PLEASE HELP ME!!!!

i m also having the same problem...plz help...every game is working even ea sports fifa 13 bt nt fm 13...

Have you tried googling it at all? This topic suggests it may be because you've got Steam in compatibility mode. This thread offers more instructions on how to fix it.