VPL: Error using java-GUI "no X11 DISPLAY set"

VPL: Error using java-GUI "no X11 DISPLAY set"

by Luise von Duesberg -
Number of replies: 1

Hi, VPL is great smile The installation under Ubuntu 64-bit went smoothly. The plugin in Moodle also works with Java program.
However, when I try to start a program with a graphical user interface, I get the following error:

java.awt.HeadlessException:
No X11 DISPLAY variable was set,
or no headful library support was found ...

What can I do?
Best regards
Oliver


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