I downloaded Ganttproject and when I double-click it, won’t open.
I tried downloading the two versions (2.8.11 and 3.0), the Windows exe and universal ZIP for both of them.
Ganttproject doesn’t do anything; doesn’t show any window, doesn’t appear in Task Manager.
I have Liberica JDK 15 in Windows 7 32-bits.
I tried it in another PC with almost the same hardware and software and worked fine.