Segmentation fault when running exampleB1

Geometry, Fields and Transportation
1

Hello，dear Geant4 users！ :smiley:
When i run exampleB1 and output the position of presteppoint and poststeppoint，i meet the followling problem :smiling_face_with_tear::
ZQE}88U%3TEX47FE`8W10A
The world is 100cm100cm100cm，locates at （0，0，0).What’s wrong with my code？How can i solve the problem？Thanks very much for your help！

2

I found this error always occured at the end of a run.When i ran 50 events:

5}N86~ETS~W98PW18M_W$}C
5}N86~ETS~W98PW18M_W$}C738×258 53.8 KB

And when i ran 50000 events:

1%YOAOH2E1$E}2@MC_7D7Y
1%YOAOH2E1$E}2@MC_7D7Y851×239 34.7 KB

3

Did you build exactly exampleB1, or is this your own code “based on” exampleB1? Have you tried running in the debugger to see where the segault happens specifically?