<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">hi, I simulated the PE7_1 example ,and I set the visualization of process by uncomment the visualization line. The visu.mac lines are following: ####### Solution 1 # With java -jar HepRApp.jar # Create a G4Data0.heprep #/vis/open HepRepFile ####### Solution 2 # With JAS3 # Create a scene-0.heprep.zip file /vis/open HepRepXML /vis/scene/create /vis/scene/add/volume /vis/scene/add/axes 0 0 0 500 mm /vis/sceneHandler/attach # Hide edge in 3D # /vis/viewer/set/hiddenEdge 1 # the following lines store ALL trajectories (do not use with too # many events !) /vis/scene/add/trajectories /vis/scene/add/hits /tracking/storeTrajectory 1 /vis/scene/endOfEventAction accumulate /vis/scene/notifyHandlers the output of interface after execution are following : [G4] Energy thresholds : gamma 1.10692 keV e- 84.8775 keV e+ 84.2607 keV proton 0 eV [G4] Region(s) which use this couple : [G4] WaterBox [G4] [G4] ==================================================================== [G4] ERROR: No HepRepDefaults, trying to get value for: IKE [G4] Data Acquisition summary [G4] time slice (s) : 1 [G4] time start (s) : 0 [G4] time stop (s) : 1 [G4] ------------------ [G4] [Core-0] End of macro main.mac In addition , there are another two output file (scene-0.heprep.zip, user.properties), How should i solve the problem, any one can give a guideline? sincerely yours Bin <div></div><div id="divNeteaseMailCard"></div> </div>