I installed geant4- 9.2.p02, ROOT-v5.27.02, geant4_vmc-2.9.
And I’d like to run the novice example E01,02…
But when I execute, root  .x run_g4.C
then the following error message appears.
" Invalid type ‘Ex02MCApplication*’ in declaration of ‘appl’ run_g4.C:36"
I’m in the initial state to run the Geant4 with ROOT.
So I’m sorry, but please help me to solve the problem.
geant4_vmc-2.9 was released with ROOT-v5.26.00b, as we had problems with running macros with ROOT-v5.27.02. So I suppose that you problem can be caused by this.
Could you send me the complete output - all printing that you get after typing:
A solution is either to move to move to the recommended version ROOT-v5.26.00b or to the root development version in trunk, where this issue is already fixed.