I made it work!

employee.cpp

@@ -19,6 +19,8 @@
 
 #include "employee.hpp"
 #include "equipment.hpp"
+#include "good.hpp"
+#include "warehouse.hpp"
 #include <iostream>
 
 Employee::Employee(): equipmentTraining(CERTIFICATES), hazardTraining(HAZARDS),

equipment.cpp

@@ -1,6 +1,9 @@
 #ifndef EQUIPMENT_CPP
 #define EQUIPMENT_CPP
+#include "employee.hpp"
 #include "equipment.hpp"
+#include "good.hpp"
+#include "warehouse.hpp"
 
 #ifndef DIMENSION
 #define DIMENSION 3

good.cpp

@@ -1,6 +1,9 @@
 #ifndef GOOD_CPP
 #define GOOD_CPP
+#include "employee.hpp"
+#include "equipment.hpp"
 #include "good.hpp"
+#include "warehouse.hpp"
 
 #ifndef DIMENSION
 #define DIMENSION 3

main.cpp

@@ -1,8 +1,12 @@
 #include <iostream>
-#include "employee.cpp"
+#include "employee.hpp"
 #include "equipment.hpp"
 #include "good.hpp"
 #include "warehouse.hpp"
+#include "employee.cpp"
+#include "equipment.cpp"
+#include "good.cpp"
+#include "warehouse.cpp"
 #include <vector>
 #include <iostream>
 

readme.md

@@ -1 +1,2 @@
-Once I figure out how I made it work I will make it work
+To compile it just write:
+g++ main.cpp

warehouse.cpp

@@ -17,6 +17,9 @@
 #define CERTIFICATES 10
 #endif // CERTIFICATES
 
+#include "employee.hpp"
+#include "equipment.hpp"
+#include "good.hpp"
 #include "warehouse.hpp"
 #include <vector>
 #include <iostream>