Problem when compiling Example B1

[montarou]

_Geant4 Version:_V11.2.2
_Operating System:_Ubuntu24.04.LTS
Compiler/Version:
CMake Version:

---

Hello,

i try to compile the new B1 basic example that is available in git repositoty (4 monthes old corresponding to the V11.3.0 version)

but within the previous installation of Geant4 V11.2.2

i got the following compilation error

/home/montarou/Geant4_Workspace/B1/src/RunAction.cc: In constructor ‘B1::RunAction::RunAction()’:
/home/montarou/Geant4_Workspace/B1/src/RunAction.cc:65:23: error: ‘class G4AccumulableManager’ has no member named ‘Register’
   65 |   accumulableManager->Register(fEdep);
      |                       ^~~~~~~~
/home/montarou/Geant4_Workspace/B1/src/RunAction.cc:66:23: error: ‘class G4AccumulableManager’ has no member named ‘Register’
   66 |   accumulableManager->Register(fEdep2);
      |                       ^~~~~~~~
make[2]: *** [CMakeFiles/exampleB1.dir/build.make:146 : CMakeFiles/exampleB1.dir/src/RunAction.cc.o] Erreur 1
make[1]: *** [CMakeFiles/Makefile2:83 : CMakeFiles/exampleB1.dir/all] Erreur 2
make: *** [Makefile:91 : all] Erreur 2

is there some incompatibility ? and should i reinstall the new version V11.3.0 to avoid error ?