I opened cern root and try to include RooFit, using
" using namespace RooFit;"
But it fails and reponse an error:
Error: namespace RooFit is not defined (tmpfile):1:
*** Interpreter error recovered ***
Hi @renqipan ,
this is what I get with ROOT installed via conda:
~ root -l (cern-root) root  using namespace RooFit; root  .q ~ root-config --features (cern-root) cxx17 asimage clad dataframe davix exceptions fftw3 fitsio gdml gviz http imt mathmore mlp minuit2 opengl pyroot pythia8 roofit webgui root7 rpath runtime_cxxmodules shared soversion sqlite ssl tmva tmva-cpu tmva-pymva spectrum vdt x11 xml xrootd
i.e. it should work.
How did you install ROOT? What ROOT version are you on? Does
root-config --features contain
thanks for your time. I tried “root-config --features”, it indicates it contains roofit, while “using namespace RooFit” can’t include the RooFit.
What ROOT version is this with and how did you install ROOT?
I can run the following command correctly with ROOT version 6.22/08
but not with the current master branch and also with current master branch:
$ root -l -b -q -e 'using namespace RooFit;'
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