Hi Team - In my Windows 10 laptop i have installed VM Ware workstation pro. And i have run Ubuntu 18.04 OS on it. Now i am running sudo commands to get Odoo 13 installed but while running some command i get error. Like 

E: Package 'openssh-server' has no installation candidate.

E: Unable to locate package fail2ban

E: Could not get lock /var/lib/dpkg/lock - open _11: Resource temporarily unavailable). 

Some more errors come during postgresql install. 

Can someone guide and advise how i can efficiently install Odoo13 on Ubuntu 18.04 since what ever i have gone through in google and other sources, its not helping in any way. 

Thanks