Undefined reference to class constructor, including .cpp file fixes

Question

The problem I am having is that, when I call a constructor for a class I have created I get the following error.

main.cpp:20: undefined reference to

Answer 1

including the cpp file causes the compiler to build that code as part of that file (which you should not do), what you need to do is compile the GameObject/StaticObject.cpp file as its own object, and link the 2 objects together.