can't install pgAdmin4 desktop on arch linux

I need your help! I'm trying to install

desktop version on my Arch system. I am getting

internal error: payload not recognized!

while building package for

-server

(which is required by pgadmin4-desktop) using

-si

command. Also, I've tried to install pgadmin4 using these 2 commands:

clone https://aur.archlinux.org/pgadmin4-py.git 

, and

pgadmin4-py/ && makepkg -si --noconfirm

, but continue to get the same error. I can't finish compiling, because this error appears and compiling process goes into a loop of these errors and I need to stop it myself by pressing

+

. I don't understand where is the problem. Would be grateful for your help.