takeaway.o: In function `takeaway': project:145: undefined reference to `vtable for takeaway' project:145: undefined reference to `vtable for takeaway' takeaway.o: In function `~takeaway': project:151: undefined reference to `vtable for takeaway' project:151: undefined reference to `vtable for takeaway' takeaway.o: In function `gameCore': project.h:109: undefined reference to `gameCore<int>::initialData(int)' collect2: ld returned 1 exit status make: *** [takeaway] Error […]