Error install openmrs

You can help im having the follow error This is the error message we get when we tried to start the OpenMRS standalone jar file:

============================= Exception in thread “main” java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. at java.awt.GraphicsEnvironment.checkHeadless(

Can you start it in command line mode with this command? java -jar openmrs-standalone.jar -commandline See more options at