Dear Experts, I’ve tried on my MAC the RooClassFactory.h in place of RooGenericPdf.h The code compiles, but when I try to run it I get the following message: Can you please help me to figure this out ? Many thanks, Mauro. [ExtractYield::MakeAngWithEffPDF] @@@ 2D angularefficiency p.d.f. @@@ …

Finally fixed in the master and v6-08; it will be part of v6.08/06 to be released this week! Apologies for the long delay… Axel.