Linking problem in C++(Unresolved external symbol...)

[grscot]

Hi everybody, I have a number of .cpp and .h files. Each couple of them(.cpp and the corresponding .h) is compiled correctly. The application compiles successfully, but in the link process an error occurs. The error is: main.obj : error LNK2001: unresolved external symbol "public: __thiscall AssociationList::AssociationList(void)" (??0?$AssociationList@VMember@@VBook@@@@QAE@XZ) Could anyone tell me what is all about? P.S If necessary please tell me to send over the code. Regards, grscot

[Toni78]

Could you post the header where this function is declared and the .cpp file file? Just the relevant parts though, including the preprocessor directives. That might be helpful. AssociationList::AssociationList(void) // Afterall I realized that even my comment lines have bugs

[WREY]

Did you put a ";" (semicolon) after the last parenthesis? Also, did you defined the constructor in the ".cpp" file? :cool: William Fortes in fide et opere!