1. Replace the GUI folder in the location root/netfpga/lib/java/gui by the GUI folder in the location from filesystem /usr/local/netfpga/lib/java/gui
2. To run the Java GUI, we use the command ./router.sh from root/netfpga/lib/java/gui
3. If the GUI fails to run, use the commands :
and then repeat step 2.
4. If the GUI fails to run even after step 3, you can run the GUI from the folder /usr/local/netfpga/lib/java/gui using the command ./router.sh.