Strange error, any help?

Hello, Im trying to compile my program but I am getting this strange error, I have no idea what it means.

release/POLevel.o:POLevel.cc:(.text+0x46b): undefined reference to `Derived::Derived()'
release/POLevel.o:POLevel.cc:(.text+0x484): undefined reference to `Derived::createLevel()'
release/POLevel.o:POLevel.cc:(.text+0x86b): undefined reference to `Derived::Derived()'
release/POLevel.o:POLevel.cc:(.text+0x884): undefined reference to `Derived::createLevel()'

This is the code I have:

Code:

---

        Derived object;
        object.createLevel();

---

My Header class looks like this:

Code:

---

class Derived: public POLevel
{
        public:
                void createLevel();
                Derived();
}

Derived::Derived()
{       
        return;
}

---

The Derived.cc file for the respective methods looks basically like this:

Code:

---

Derived::Derived()
{       
        return;
}

void createLevel()
{
}

---

I have no idea why im getting the error, any help would be greatly appreciated.

Did you forgot to compile and link Derived.cc?

Derived source file does not include the Derived header file. I think that may be the reason.

In Derived.cc I have this at the top,
I just missed the header include when i copied it.

#include "Derived.h"

I think everything is linked correctly?
Im not too sure though.

Please read this, and reformulate your sample so that others can actually compile the code:

http://www.parashift.com/c++-faq-lit...t.html#faq-5.8

This eliminates us trying to guess what you really have.

Regards,

Paul McKenzie