I'm trying to install this particular module : https://apps.odoo.com/apps/modules/11.0/rp_guest_book/ to my Odoo version 11.0. I have done the followings :
extract the zipfile to C:\Program Files (x86)\Odoo 11.0\server\addons folder
restart odoo server in Service tab of Task Manager.
activate Developer Mode
go To Apps, then click Update App List.
update the addons_path variable in the odoo.conf file with both the standard path to addon folder C:\Program Files (x86)\Odoo 11.0\server\addons and the path to the new module C:\Program Files (x86)\Odoo 11.0\server\addons\rp_guest_book
Repeating restart odoo server and click Update App List a few times...
Still no luck.
As an alternative solution, does anyone know any app or module that can be used/customized as Guestbook? Thank you.
https://www.youtube.com/watch?v=KCGAKbVT92k