No dictionary for class RooStats::HistFactory::RooBSpline is available

Roofit and RooStats
1

Hi:
Could someone help me for the problem when I’m trying to open a workspace root file.
When I load this file, root tells me:

Warning in TClass::Init: no dictionary for class RooStats::HistFactory::RooBSpline is available
Warning in TClass::Init: no dictionary for class RooStats::HistFactory::RooBSplineBases is available
Warning in TClass::Init: no dictionary for class RooParamKeysPdf is available
(TFile *) 0x4729f90
Error in TBufferFile::ReadObject: trying to read an emulated class (RooStats::HistFactory::RooBSpline) to store in a compiled pointer (TObject)
Error in TBufferFile::ReadObject: trying to read an emulated class (RooParamKeysPdf) to store in a compiled pointer (TObject)

There is no problem when I look at this root file in lxplus.
my root version is 6.19/01.
I think there is a problem when I build the root?
It would be very appreciated if someone could help me.

2

Which version of ROOT do you use on lxplus?

Oksana.

3

Hi Oksana,
Thanks for your help.
The root I used is here: /cvmfs/atlas.cern.ch/repo/sw/software/21.2/AnalysisBaseExternals/21.2.96/InstallArea/x86_64-centos7-gcc8-opt/bin/root

The version is: 6.16/00

I try to search and run: grep -r “RooParamKeysPdf” under folder: /cvmfs/atlas.cern.ch/repo/sw/software/21.2/AnalysisBaseExternals/21.2.96/InstallArea/x86_64-centos7-gcc8-opt
and nothing returns. a little bit strange

Yingjie

4

The RooParamKeysPdf and RooBSlpline are not class of ROOT. I gues they are part of some ATLAS software, so you might load the corresponding library before that contains the dictionary

Lorenzo

5

Hey,
Many thanks! Exactly.
I find that package is here.
But have to change the version of root to 6.14. Anyway, solved.
Cheers,
Yingjie