Problem Install/Running Amritage on Kali Linux

Hello, I've run in to a bit of a problem installing Amritage on kali linux on a windows computer. I've tried reinstalling and updating both kali and metasploit but I run into this text everytime I try to run amritage:

$ armitage 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:208) at java.desktop/java.awt.Window.(Window.java:548) at java.desktop/java.awt.Frame.(Frame.java:423) at java.desktop/javax.swing.JFrame.(JFrame.java:224) at ui.MultiFrame.(MultiFrame.java:213) at armitage.ArmitageMain.main(ArmitageMain.java:200)

Sorry if this question has been asked already I've tried google but with no result.

Thanks a lot best regards Erik Ros