In my opinion your problem might be the result of lack appropriate inclusion before including LAYOUTFILE. It should be done something like that:

#include <Scatter/Pie.h> // This include doesn't exist - you need to find appropriate file or wait until Koldo fix PieTest.
#include <Report/Report.h>
#include <PdfDraw/PdfDraw.h>

#define LAYOUTFILE <PieTest/PieTest.lay>
#include <CtrlCore/lay.h>

Please Diego: Could you confirm that Examples\ScatterCtrl_Demo compiles and runs perfectly?

To include PieCtrl in your package you would need to include ScatterCtrl package and include

#include <ScatterCtrl/ScatterCtrl.h>
#include <ScatterCtrl/PieCtrl.h>

Following Diego answer I understand that layout editor shows the PieCtrl. This way I can imagine ScatterCtrl package is really well loaded.

Diego please include this to see if you get the image. Just in case you may comment out everything but the AddCategory() (like in ScatterCtrl_Demo):

imgCostes = grafCostes.GetImage(); 
PNGEncoder encoder;
encoder.SaveFile("Any folder\\myfile.png", imgCostes);