Conflict between 6.14.04-x86_64-slc6-gcc62-opt and 5.34.19-x86_64-slc6-gcc48-opt

[Wile_E_Coyote]

TStreamerInfo warning when open TFile of newer version

Hello, I try to rewrite some root files generated by newer version of ROOT (for example 6.14) with an older veresion of ROOT (5.xx) I store a simple TTree (with some casual data) in the originial root file (of ROOT 6). Only for testing. Then open it with ROOT 5. All data of the TTree can be loaded correctly. But a warning is shown as: Warning in <TStreamerInfo::BuildCheck>: The StreamerInfo of class TAttMarker read from file test.root has the same version (=2) as the active class but a…

Cannot write histograms in the file because of opening another root file

Hello, While I’m doing my analysis with a macro, I’m opening another rootfile to copy a tree. Then I’m returning to the previous, main file and filling some histograms and in the end I’m writing them all. The problem is that when I’m opening the resulting root file, all the histograms don’t have any entries. The debugging process showed that the histograms are filled correctly, there’s a problem with writing them. The part with accessing another file was copied from thread somewhere here: TFil…