Valve Hammer Editor wont compile my map (correctly)

Pls help, when i try to RUN Half-Life 2 with my map (F9) It says:


CModelLoader::Map_IsValid:  No such map 'maps/gm_matt_test.bsp'

and



-----  BEGIN  hlrad -----
Command line: C:\PROGRA~1\VALVEH~1\HAMMER~1\HAMMER~1\HALF-L~1\hlrad.exe "C:\Program Files\Valve Hammer Editor\dump\gm_matt_test" 
Arguments: "C:\Program Files\Valve Hammer Editor\dump\gm_matt_test" -low 
>> There was a problem compiling the map.
>> Check the file C:\Program Files\Valve Hammer Editor\dump\gm_matt_test.log for the cause.

-----   END   hlrad -----

It would be awesome if you could help me!

PS: >> Check the file C:\Program Files\Valve Hammer Editor\dump\gm_matt_test.log for the cause.
C:\Program Files\Valve Hammer Editor\dump IS EMPTY!

Post the entire compile log, not just the output of VRAD.