Getting a Undefined Symbol: 'CFbsBitmap::CFbsBitmap(void) ..

I'm new to symbian, but i've been programming some years.

I get this problem, wich is probably rather simple, but I've been looking at i for so long, that I might have gone blind

I get a linker error saying
Undefined Symbol: 'CFbsBitmap::CFbsBitmap(void) (??0CFbsBitmap@@..)'

And i really can't see why.
The part the error is originating from is here:
void CQStartView::ConstructL()
{
   CFbsBitmap* iBitmap;
   _LIT(KTxtMBMname,"C:\\system\\apps\\BasicApp\\grbmap.mbm");
    CreateWindowL();
    Window().SetShadowDisabled(ETrue);
   TRect rect = iAppUi->ClientRect();
   SetRect(rect);
    ActivateL();
    MakeVisible(EFalse);
    // set up name for bitmap sharing
TBool shareIfLoaded(ETrue);
   iBitmap = new (ELeave) CFbsBitmap();
   
}

when i attempt to create the instance iBitmap of CFbsBitmap i get the error. I just can't see why.  

Hope somone can spot my mistake.