Hammer don't want to open

Everytime I tried to open Hammer in Source SDK (In any game), I keep getting a error that say
**The configuration information for the game you’re trying to edit is invalid or missing *

If I can’t fix this… then I can’t make maps for NONE of my Source games…

Source SDK is broken.

C:\Program Files (x86)\Steam\SteamApps\common\GameNameHere\bin

and open up hammer.exe

I’ll will try that