Postgresql can't connect application server through PGAdmin4

Question

I installed PostgreSql on my Windows machine. I can connect to PostgreSql through cmd. But when I want to launch pgAdmin I am getting this error message.

Answer 1

In my case, the problem was non-ascii username.

Find pgAdmin installation and open/create config_local.py in editor, add this:

DATA_DIR = "C:/Data/pgAdmin" # set non-ascii path here

and run setup.py using python interpreter.