Thread: [PI] Ubuntu VPS Help

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  1. #1 [PI] Ubuntu VPS Help 
    Registered Member dorsett45's Avatar
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    Code:
    Exception in thread "main" java.lang.ExceptionInInitializerError
    Caused by: java.awt.Headles***ception: 
    No X11 DISPLAY variable was set, but this program performed an operation which requires it.
    	at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:197)
    	at java.awt.Window.<init>(Window.java:532)
    	at java.awt.Frame.<init>(Frame.java:420)
    	at java.awt.Frame.<init>(Frame.java:385)
    	at javax.swing.JFrame.<init>(JFrame.java:180)
    	at server.util.ControlPanel.<init>(ControlPanel.java:20)
    	at server.Server.<clinit>(Server.java:61)
    How do I manage to fix this? Linux VPS
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  2. #2  
    only shallow

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    Code:
    export DISPLAY=:0.0
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  3. #3  
    Registered Member dorsett45's Avatar
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    Quote Originally Posted by Riddle View Post
    Code:
    export DISPLAY=:0.0
    i've done that.

    Code:
    Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
            at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
            at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
            at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:110)
            at java.security.AccessController.doPrivileged(Native Method)
            at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74)
            at java.lang.Class.forName0(Native Method)
            at java.lang.Class.forName(Class.java:186)
            at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:102)
            at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:81)
            at java.awt.Window.initGC(Window.java:466)
            at java.awt.Window.init(Window.java:486)
            at java.awt.Window.<init>(Window.java:533)
            at java.awt.Frame.<init>(Frame.java:420)
            at java.awt.Frame.<init>(Frame.java:385)
            at javax.swing.JFrame.<init>(JFrame.java:180)
            at server.util.ControlPanel.<init>(ControlPanel.java:20)
            at server.Server.<clinit>(Server.java:61)
    next.
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