CMdaImageDescToBitmapUtility Link Error

Hi all,

I have read the example of ImageConv. Inside there, it has used the class CMdaImageFileToBitmapUtility to display a file on screen.

I am now going to do a similar thing, but i going to display from buffer instead of file. Therefore I use CMdaImageDescToBitmapUtility.
Unfortunately, while I compile my code, it shows some error.

GPSAPPUI.obj : error LNK2001: unresolved external symbol "public: static class CMdaImageDescToBitmapUtility * __cdecl CMdaImageDescToBitmapUtility::NewL(class MMdaImageUtilObserver &,class CMdaServer *)" (?NewL@CMdaImageDescToBitmapUtility@@SAPAV1@A
AVMMdaImageUtilObserver@@PAVCMdaServer@@@Z)
GPSAPPUI.obj : error LNK2001: unresolved external symbol "public: void __thiscall CMdaImageDescToBitmapUtility::OpenL(class TDesC8 const &,class TMdaClipFormat *,class TMdaPackage *,class TMdaPackage *)" (?OpenL@CMdaImageDescToBitmapUtility@@QAEXABV
TDesC8@@PAVTMdaClipFormat@@PAVTMdaPackage@@2@Z)

I have already included the <MdaImageConverter.h> and the library mediaclientimage.lib which the example had included.

Does anyone know how to solve this error? Is there any library I need to include as well? Thank you very much for any advices.