Dmitriy, I haven't tried in a while, but I believe the TreeViewer is not loaded by default when you start root, so you have to do a .L $ROOTSYS/libTreeViewer.so or similar before trying to create a TreeViewer. Cheers, Jack cranshaw@fnal.gov Bandurin Dmitry wrote: > I have type in the ROOT session: > > root [0] tv = new TTreeViewer("h20"); > > and have received the following: > > Error: No symbol TTreeViewer in current scope FILE:/tmp/filelrQGh8_cint LINE:1 > Error: type TTreeViewer not defined FILE:/tmp/filelrQGh8_cint LINE:1 > > Does anybody know what is the reason of the error? > Wrong installation? > > ------------ > Dmitriy
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