I'm trying to properly install clickable on my computer. I get this error:

eureka@eureka:~$ echo "export PATH=$PATH:~/clickable" >> ~/.bashrc
eureka@eureka:~$ clickable setup-lxd
No clickable.json was found, using defaults and cli args
Container already exists, nothing to do
eureka@eureka:~$

The thing is I'm fairly new to programming so I don't know how to make a .json file in the terminal. Or is it already located in the clickable root directory? I really have no clue what I'm doing at this point-I just want to make apps for the Ubuntu phone that people will love.

I'm in the process of setting up bhdouglass's clickable program from github on my computer. I have completed the steps up until the point where after I have to setup LXD for the mr_nice_guy account (see Inside the Container just before Configure clickable inside the container on the ubports wiki https://wiki.ubports.com/wiki/Set-up-a-Clickable-working-environment-inside-an-LXC-container).

I get this message:

mr_nice_guy@clickablecontainer:/root$ cd
mr_nice_guy@clickablecontainer:~$ cd $HOME
mr_nice_guy@clickablecontainer:~$ sudo apt-get install lxd
sudo: no tty present and no askpass program specified
mr_nice_guy@clickablecontainer:~$ sudo systemctl start lxd.service
sudo: no tty present and no askpass program specified
mr_nice_guy@clickablecontainer:~$ sudo usermod -a -G lxd mr_nice_guy
sudo: no tty present and no askpass program specified

After reading through sudo's man page I found out that -A or - - askpass is a program and apperently sudo can't find it because (I believe) because mr_nice_guy is a new account he doesn't have an askpass program. What do I have to do to allow mr_nice_guy to setup LXD?