Root Error when Compiling RestFrames

[DJSteins]

I had these errors pop up when I tried to compile RestFrames:

MinMassDiffInvJigsaw.cc:216:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘FixVariable’; did you mean ‘SetVariable’?
       m_minimizer->FixVariable(1);
                    ^~~~~~~~~~~
                    SetVariable
MinMassDiffInvJigsaw.cc:217:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘FixVariable’; did you mean ‘SetVariable’?
       m_minimizer->FixVariable(2);
                    ^~~~~~~~~~~
                    SetVariable
MinMassDiffInvJigsaw.cc:219:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘ReleaseVariable’; did you mean ‘SetFixedVariable’?
       m_minimizer->ReleaseVariable(1);
                    ^~~~~~~~~~~~~~~
                    SetFixedVariable
MinMassDiffInvJigsaw.cc:220:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘ReleaseVariable’; did you mean ‘SetFixedVariable’?
       m_minimizer->ReleaseVariable(2);
                    ^~~~~~~~~~~~~~~
                    SetFixedVariable

Any ideas what may be causing this? I currently have version 5 of ROOT installed on my computer as that is the version that comes when doing apt install root-system

[crogan]

What version of ROOT are you using exactly? You can find this by typing

root-config --version

on the command line. Were there any errors involving ROOT::Math::Minimizer before this?

[DJSteins]

My root version is 5.34/14.

There were also these errors, which actually appeared after the ones I posted above.

MaxProbBreitWignerInvJigsaw.cc: In member function ‘void RestFrames::MaxProbBreitWignerInvJigsaw::ApplyOptimalRotation()’:
MaxProbBreitWignerInvJigsaw.cc:221:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘FixVariable’; did you mean ‘SetVariable’?
       m_minimizer->FixVariable(1);
                    ^~~~~~~~~~~
                    SetVariable
MaxProbBreitWignerInvJigsaw.cc:222:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘FixVariable’; did you mean ‘SetVariable’?
       m_minimizer->FixVariable(2);
                    ^~~~~~~~~~~
                    SetVariable
MaxProbBreitWignerInvJigsaw.cc:224:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘ReleaseVariable’; did you mean ‘SetFixedVariable’?
       m_minimizer->ReleaseVariable(1);
                    ^~~~~~~~~~~~~~~
                    SetFixedVariable
MaxProbBreitWignerInvJigsaw.cc:225:20: error: ‘class ROOT::Math::Minimizer’ has no member named ‘ReleaseVariable’; did you mean ‘SetFixedVariable’?
       m_minimizer->ReleaseVariable(2);
                    ^~~~~~~~~~~~~~~
                    SetFixedVariable