Hi Dear G4 users! I’m G4 beginner, I had already installed the software, but when I try to build some examples, I got the error message below. can’t someone help me ?
See http://geant4-userdoc.web.cern.ch/geant4-userdoc/UsersGuides/InstallationGuide/html/postinstall.html
After installation, did you source the Geant4 environment script (<your-install-dir>/bin/geant4.sh or .csh)? That script sets the necessary environment variables so you can build against the G4 you just installed.
If you plan to do old-style Make builds of the examples or your applications, you should source <your-install-dir>/share/Geant4/10.x.y/geant4make/geant4make.sh or .csh instead (use 10.6.1 for 10.06-patch-01, for example).
You need to source one of these, as appropriate, every time you open a new terminal session, to set the necessary environment variables.
Thank’s for your request. The compilation and run succeed