Linker error - unsolved external symbol

[Wolfgang Rueckert]

hello everybody,

i got a linker error, but i really don't know why!! i checked everything
twice and more
someone had an idea what else it could be?
wolfgang


--------------------Konfiguration: PyramidUp - Win32
Release--------------------
Linker-Vorgang läuft...

PyramidUp.obj : error LNK2001: unsolved external Symbol "public: class
MrtSignal<unsigned char> * __thiscall TL_Pyramid::allocateUp(class
MrtSignal<unsigned char> *)"
(?allocateUp@TL_Pyramid@@QAEPAV?$MrtSignal@E@@PAV2@@Z)PyramidUp.dll