Error when launching server - No X11 display variable was set

[BOb4]

I am trying to run a forge server, but the following error is generated when i try to start the server:

root@minecraft:/home/forge# java -Xmx5000M -Xms2048M -jar forge.jar nogui
JVM info: Debian - 17.0.1 - 17.0.1+12-Debian-1deb11u2
java.net.preferIPv4Stack=true
Found java version 17.0.1
Exception in thread "main" 
java.awt.HeadlessException: 
No X11 DISPLAY variable was set,
but this program performed an operation which requires it.
        at java.desktop/java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:166)
        at java.desktop/java.awt.Window.<init>(Window.java:553)
        at java.desktop/java.awt.Frame.<init>(Frame.java:428)
        at java.desktop/java.awt.Frame.<init>(Frame.java:393)
        at java.desktop/javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1919)
        at java.desktop/javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1995)
        at java.desktop/javax.swing.JOptionPane.getRootFrame(JOptionPane.java:1695)
        at java.desktop/javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:874)
        at java.desktop/javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:676)
        at java.desktop/javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:647)
        at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:177)
        at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:147)

Minecraft version 1.18.1

[BOb4]

7 minutes ago, diesieben07 said:

It appears you renamed the installer "forge.jar" and are trying to launch it as if it were a server.

You are indeed correct, i must have been confused while following a tutorial. It seems the tutorial was outdated and that all i had to do was run the "run.sh" file

Edited December 26, 2021 by BOb4