I installed v14 second time and this is running fine. But i found couple of problems like some of the cli command fails to execute.

Like ./odoo-bin shall -d dev

./odoo-bin scafolled local-payment mymodules

./odoo-bin populate

etc ....

Error is FileNotFoundError: [Errno 2] No such file or directory: '/Users/rezaulhasan/Computer/Dev/odoo/odoo/customaddons'

clue is my previous version i created my custom module folder in this '/Users/rezaulhasan/Computer/Dev/odoo/odoo/customaddons' location.

how can I resolve this problem?

Odoo-bin create a cache file in: Users//.odoorc and store all kinds of command you previously executed.

Remove it. problem will be solved.