Error Could not find or load main class org.jabref.gui.JabRefMain

Hi,

Everything was working fine for me untial last night, after I submitted a PR and passed all the online test. Then suddenly in IntelliJ, I got the following error

Error: Could not find or load main class org.jabref.gui.JabRefMain
Caused by: java.lang.ClassNotFoundException: org.jabref.gui.JabRefMain

I repeated the same issue with both Windows 10, Linux Ubuntn OS 20.04, IntelliJ 1.2, IntelliJ 2.3
I can still run with gradlew no problem.

Any input would be greatly appreciated,

thanks,

Hi, try to ask in our gitter chat, there have been similar issues from others JabRef/jabref - Gitter