[Cbc] help with gamstest in folder test

[Christos]

I compiled and run successfully many examples from Cbc but when i am 
trying to compile gams test i get these 3 errors:
Error 1 error LNK2019: unresolved external symbol "int __cdecl 
CbcMain1(int,char const * * const,class CbcModel &)" 
(?CbcMain1@@YAHHQAPBDAAVCbcModel@@@Z) referenced in function "void 
__cdecl sos1a(int &,int &)" (?sos1a@@YAXAAH0 at Z) 
G:\Διπλωματικη\gamstest\A\A\A.obj A

Error 2 error LNK2019: unresolved external symbol "void __cdecl 
CbcMain0(class CbcModel &)" (?CbcMain0@@YAXAAVCbcModel@@@Z) referenced 
in function "void __cdecl sos1a(int &,int &)" (?sos1a@@YAXAAH0 at Z) 
G:\Διπλωματικη\gamstest\A\A\A.obj A

Error 3 error LNK1120: 2 unresolved externals 
G:\Διπλωματικη\gamstest\A\Debug\A.exe 1 1 A


Can anyone help?
Thank you