I am trying to use Jabref 4.1 under fedora 27. I downloaded and I am using the jar file. However when launching it I get the frame of the Jabref window completely empty (no buttons, menus, nothing).
In the command line I get:
“[AWT-EventQueue-0] WARN org.jabref.JabRefGUI - There seem to be problems with OpenJDK and the default GTK Look&Feel. Using Metal L&F instead. Change to another L&F with caution.
File: grouptree.fxml not found, attempting with camel case
File: grouptree.css not found, attempting with camel case”
The same while using the development snapshot.
As far as I understand this should be a solved issue in version 4.x. So I am probably doing something wrong. Any suggestions would be greatly appreciated.