may i install on localhost

[liwenz]

before I really deploy, I hope to test on localhost,but I failed. What should I do it?
My message is follow: (Ubuntu20)

Finished installing core dependencies

Setting up security feature details...

Finished setting up security feature details

Creating database...

CREATE ROLE
CREATE DATABASE
Finished creating database

Please provide details for your Saleor API instillation...

Enter the API host domain:localhost
Enter a custom Static Files URI (optional):
Enter a custom Media Files URI (optional):

Enter the Dashboard admin's email:[email protected]

Enter the Dashboard admin's desired password:Rules updated
Rules updated (v6)
Rules updated
Rules updated (v6)
sudo: unknown user: mkdir
sudo: unable to initialize policy plugin
liwen@liwen-OEM:~$

[ServicioIT]

i got the same problem... any solution?