Question

I’m trying to import some working Visual C++ code into Qt Creator and I’m having some compilation error I can’t explain. This is my code:

// TabSprite.h

#include <GraphicsItem.h>

namespace appetizer {

class TabSprite : public GraphicsItem {

public:

  TabSprite(GraphicsWindow* parentWindow);

}

---

// TabSprite.cpp

#include <TabSprite.h>
using namespace appetizer;

TabSprite::TabSprite(GraphicsWindow* parentWindow): GraphicsItem(parentWindow) {

}

And Qt Creator give me this error (at the constructor declaration in TabSprite.cpp):

Undefined reference to ‘appetizer::GraphicsItem::GraphicsItem(appetizer::GraphicsWindow*)

However GraphicsItem is properly declared in GraphicsItem.h so I don’t understand why the compilers doesn’t find it. Can anybody see what could be wrong with this code?

Answer 1

That means that you didn’t define the constructor of GraphicsItem.