If anyone is having issues updating Parrot OS, you can run the following commands, and make the following changes, to fix the issues. This is a bug in Parrot OS.
$ sudo apt-get remove apt-listchanges
$ sudo mousepad /etc/apt/sources.list.d/parrot.list
ADD
deb http://mirrors.mit.edu/parrot/ rolling main contrib non-free
$ sudo apt update
$ sudo parrot-upgrade
$ sudo apt autoremove
Note: You might not have mousepad installed. This is a text editor I prefer. If you want to install it, run the following command.
$ sudo apt install mousepad -y
.
