Hi, I am writing events (of a class DEvent) to a TTree. The DEvent contains a "TClonesArray* fPlanes", and once created with new TClonesArray("DPlane",1). (like described in a tutorial) This works and I find fPlane objects in the tree. Now, I introduce in class DPlane a "TClonesArray *fHits", created once in the DPlane implementation with new TClonesArray("DHits",1). Running the programm root says Warning in <TBranchClones::BranchClones>: Cannot process member:fHits Is it possible to store cloned objects which contain other cloned objects to a tree? Do you have an example? merci Dirk
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