Cannot open a RooWorkspace once it is saved - Allocating an object of class type error

Roofit and RooStats
1

Hello,
I have recently created a RooWorkspace and saved it to a file, but I receive an error when I try to open the file and retrieve the workspace. The error is lengthy, but it starts as follows:

input_line_48:5:21: error: allocating an object of abstract class type 'RooAbsPdf'
         *ret = new RooAbsPdf;
                    ^
/cvmfs/atlas.cern.ch/repo/sw/software/0.5/StatAnalysis/0.5.2/InstallArea/x86_64-el9-gcc13-opt/include/RooAbsArg.h:90:20: note: unimplemented pure virtual method 'clone' in 'RooAbsPdf'
  virtual TObject* clone(const char* newname=nullptr) const = 0 ;
                   ^
/cvmfs/atlas.cern.ch/repo/sw/software/0.5/StatAnalysis/0.5.2/InstallArea/x86_64-el9-gcc13-opt/include/RooAbsReal.h:453:18: note: unimplemented pure virtual method 'evaluate' in 'RooAbsPdf'
  virtual double evaluate() const = 0;
                 ^
input_line_48:8:21: error: allocating an object of abstract class type 'RooAbsPdf'
         *ret = new RooAbsPdf[nary];
                    ^
input_line_48:13:29: error: allocating an object of abstract class type 'RooAbsPdf'
         *ret = new (arena) RooAbsPdf;
                            ^
input_line_48:16:29: error: allocating an object of abstract class type 'RooAbsPdf'
         *ret = new (arena) RooAbsPdf[nary];
                            ^
Error in <TClingCallFunc::make_ctor_wrapper>: Failed to compile
  ==== SOURCE BEGIN ====

It should be noted that this workspace uses only native RooFit methods. No custom classes were built for this workspace, based on RooAbsPdf or otherwise.

This error occurs if I try to open the file via a script (using a command such as RooWorkspace* ws = (RooWorkspace*)wsFile->Get(wsName); where wsFile is the name of the file (a const char*) and wsName is the name of the workspace (also a const char*)) or via an interactive Root session (using a command such as wsName->Print() where wsName is the name of the workspace).

Furthermore, this error occurs across multiple versions of Root. I have tried to open the workspace in v6.32 and v6.34, and I receive the same error. The workspace is created using Root v6.32.02.

Any help would be greatly appreciated. Thank you

EDIT: The workspace can be found here on /eos: CERNBox

2

Hi @mmaroun0,

let me tag @jonas for further help.

Cheers,
Marta

3

I have opened a PR with a hotfix that can also be backported to the releases that you mentioned: