Installation failed on Arch Linux - missing dependencies

[rainer2208]

Hi, I am on Arch Linux, Hefftor Linux version 2021-01-11.

I was trying to install the launcher today (package from https://aur.archlinux.org/packages/mylaunchpad-git/), but got stuck due to missing dependencies.

The stack trace after makepkg -s is the following:

==> Installing missing dependencies...
    error: target not found: python2-lxml
    error: target not found: gnome-menus2
    error: target not found: python2-distutils-extra
==> ERROR: 'pacman' failed to install missing dependencies.   

Trying to install the missing dependencies with :

sudo pacman -U --asdep python2-lxml
sudo pacman -U --asdep python2-cairo

returns .....

 error: 'python2-lxml': could not find or read package
 error: 'python2-cairo': could not find or read package

Is there still a way to install the launcher on Arch?