Error to compile geant4 after update ubuntu 18.04 to 20.04

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#1

Hi geant4 user ! I got error to compile my geant4 source code after update ubuntu 18.04 to ubuntu 20.04. someone can help me to fix it ?

Capture d’écran de 2020-10-17 10-10-49
Capture d’écran de 2020-10-17 10-10-491366×768 183 KB

#2

You may need to recompile the main parts of geant4 if you have updated the OS version.

#3

okay !
Thank for help !

#4

You may also be missing needed packages such as QtCore etc. In general you should always recompile/reinstall after an upgrade as there’s no guarantee of binary compatibility or the same layout of system packages.

#5

Okay! I tried to upgrade the Qtcore package.
Thank for your help.