What does the error "NO X11 DISPLAY" mean?


When you get this error:


   "No X11 DISPLAY variable was set, but this program performed an operation which requires it."
It means that isCOBOL is trying to access the AWT/SWING GUI Interface and your system doesn't have that.

If your program doesn't have a GUI interface, you can try to set this property in your run command line:


   iscrun -J-Djava.awt.headless=true ...
or

   java -Djava.awt.headless=true ...
If your cobol program includes some textual ACCEPT/DISPLAY statements, you'll need to use isCOBOL's CHARVA toolkit by adding a '-t' switch to your command line:

   iscrun -t ...
This automatically sets this configuration variable needed to activate CHARVA:
 iscobol.guifactory.class=com.iscobol.gui.client.charva.GuiFactoryImpl 



Article ID: 207
Created: July 19, 2013
Last Updated: April 18, 2024
Author: Support KB Author

Online URL: https://support.veryant.com/support/phpkb/article.php?id=207