Install in Ubuntu 18.04

Good Day,

Requesting for your help, Im trying to install ERPnext in Ubuntu 18.04 using the documentation Home · frappe/frappe Wiki · GitHub

but I got an error when i tried to start the bench using the command
erp@erp-server:~/frappe-bench$ bench start
2019-02-15 12:39:52 [2912] [ERROR] Procfile does not exist or is not a file

then when i type the ls inside frappe-bench i noticed that not complete the file from the website I only found is

erp@erp-server~/frappe-bench$ ls
apps config env logs package.json sites

Now when i trying the creation of new site i got an error or when i start the bench
erp@erp-server:~/frappe-bench$ bench start
2019-02-15 12:39:52 [2912] [ERROR] Procfile does not exist or is not a file

Please Help, More Power and Thank You in advance

Use bench setup Procfile

Sir I got also an error:
Error: No such command “Procfile”

Although you may have to adjust this to your specific needs, this post solves a similar problem…