Hello Justin,
We aren't sure about the loop back feature for GreenFoot application that you are referring.
Are you using the AVG Antivirus free or AVG Internet Security program?
Could you disable AVG Antivirus/Internet Security temporarily and see whether it resolves the issue?
Refer this https://goo.gl/Pmk4ak article and follow the steps to disable AVG protection temporarily.
Keep us informed about the status.
I am a AP Computer Science A student who is using Greenfoot. However, Greenfoot refuses to launch; its debug log says it cannot launch RMI server.
After research I was directed to this support article on Greenfoot: https://www.greenfoot.org/doc/firewall, which says that it's due to loopback being disabled.
How do i enable loopback?
Hello Justin,
We aren't sure about the loop back feature for GreenFoot application that you are referring.
Are you using the AVG Antivirus free or AVG Internet Security program?
Could you disable AVG Antivirus/Internet Security temporarily and see whether it resolves the issue?
Refer this https://goo.gl/Pmk4ak article and follow the steps to disable AVG protection temporarily.
Keep us informed about the status.