Migration Utility: No X11 DISPLAY variable was set

Error:

When running the migration utility on a Linux system, I am seeing this error

$ ./migrationutility.sh

java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03, mixed mode)
java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.

Cause:

The linux system you are running doesn't support the Adeptia Migration Utility's user interface

Solution:

Run the migration utility in console mode

./migrationutility.sh -console