TNtuples in TTrees

From: nigel@kiwi.chm.bnl.gov
Date: Tue Sep 21 1999 - 15:46:36 MEST 

Dear Roottalk,
	      I tried to put a TNtuple into a TTree, using the following
code

   TNtuple nt("ntuple","Big Ntuple","run:evt:sen");
   TTree *acc=new TTree("acc","Acceptance");
   TBranch *br_nt;
   br_nt=acc->Branch("ntuple","TNtuple",&nt);


and got the following responce

Error in <TClass::New>: no default ctor for class TPacketGenerator

 *** Break *** segmentation violation

Does this mean it is impossible to put TNtuples into TTrees? TNtuple
is derived from TObject so why doesn't this work?


			Thanks
			Nigel

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