Hi Luigi, You need to link against the dictionary you produce. In your makefile, you commented out the revelant lines: #main : main.o test.o testDict.o # $(LD) $(LDFLAGS) $(LIBS) main.o test.o testDict.o \ # $(OutPutOpt)$(MAIN) Cheers, Philippe -----Original Message----- From: owner-roottalk@pcroot.cern.ch [mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Luigi Esposito-MACRO Sent: Monday, November 10, 2003 9:44 AM To: roottalk@pcroot.cern.ch Subject: [ROOT] Object in a tree Hi to all, I'd like to put in a tree a object that doesn't inherits from a TObject. I checked at http://root.cern.ch/root/html/TTree.html#TTree:Branch and I read that it's possible. So I tried with a dummy test but I have this error Error in <TTree::Bronch>: Cannot find class:test and in the tree there is no trace of the Branch I have defined. Where is my error? Thank you, Luillo
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