I have installed an independent postgresSql version 9.1 (x86). Then i simply had installed odoo-11 service without the postgresql because i already have it. After that I had to download the odeo11 source code and configure it in pycharm here is the screen shot of my odoo configuration.
https://ibb.co/eMSZsG
here is my odoo.conf
[options]
; This is the password That Allows database operations:
; admin_passwd = admin
db_host = localhost
db_port = 5432
db_user = openpg
db_filter =. *
db_password = openpgpwd
addons_path = d: \ odoo \ addons
xmlrpc_port = 8088
Futher i had debugged with pycharm and i was successfull installing odoo-11
But i had installed odoo10 using same method then my odoo11 install got conflicted with odoo11 and console shows me error
Please read my comment( I had used different postgresql users for each version.
This is just a logger warning right
But my odoo11 service isn't worked when i configure two instances together\