I have recently built asterisk and the asterisk-gui on my Ubuntu machine.

I am new to all this. Everything appears to be working, although when I log in to the web GUI, the Dial Plans page does not show any content at all. Because of this, I cannot create any extensions without there first being a dial plan.

Can anyone help with this please?

What version of Asterisk are you running?
I’ve had strange results with 1.6 and the web GUI.
After moving back to version 1.4 all was working fine for me.

I’m using the lastest 1.4 version. I think.