Error C2079: uses undefined class

[Momentum]

AS STLDude already pointed out you should use forward declarations in the header files rather than #ncludes.
And #ncludes should be mostly used in the .cpp files.

Besides, this passing Waiter object by value looks bad:Better would be to pass it by cont reference:

class Table{
public:
	void assignWaiterToTable(const Waiter &waiter);
	string myWaiter();

thanks for the reply. While trying to troubleshoot the problem, I stripped each class to the bare minimum functions and variables, removed all pointers and references, to hopefully figure out the cause of the problem