Ok I explain better:
I’ve the directories
C:\Program Files\geant4_10_07_p01 : Geant4 sources downloaded from geant website
C:\Program Files\geant4_10_07_p01_build : Here I built Geant
C:\Program Files\geant4_10_07_p01_install : Here I installed Geant
C:\Program Files\HepMC3: HepMC sources downloaded from HepMC website
C:\Program Files\HepMC3-build : Here I built HepMC
C:\Program Files\HepMC3-install: Here I installed HepMC
C:\B1: Main directory of my simulation
C:\B1\B1-build: Here I must build my simulation
Then I lunch the commands
cd “C:/B1/B1-build”
cmake -DGeant4_DIR="C:\Program Files\geant4_10_07_p01_install\lib\Geant4-10.7.1" "C:\B1"
and I get the errore due to missing HepMC
so geant can’t build the simulation…
then in which directory should I cd and how should I sed the cmake-gui?