Dear G4 experts,
I’m experiencing some issues in running example B1 provided with geant4.10.05.p01. Please find below the error message I get when I launch the command ./exampleB1 from B1-build folder:
/vis/open OGL 600x600-0+0
/vis/viewer/create ! ! 600x600-0+0
G4OpenGLXViewer::G4OpenGLXViewer: unable to get a single buffer visual.
G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual.
G4OpenGLXViewer::G4OpenGLXViewer: unable to get required visuals.
G4OpenGLStoredX::CreateViewer: error flagged by negative view id in G4OpenGLStoredXViewer creation.
Destroying view and returning null pointer.
ERROR in G4VisManager::CreateViewer: null pointer during OpenGLStoredX viewer creation.
No action taken.
WARNING: No viewer created.
I am pretty sure building and installation of the environment has been done correctly.
Could you please give me some suggestions to solve this issue?
Thanks in advance.