When I am in debug mode and try to go to Settings or click on Settings --> Dashboard, odoo shows
Action Error
Could not find client action 'web_settings_dashboard.main'.
As I see - it is frontend issue.
If I am not in debug mode - works fine. What could it be?
Odoo 11.0e
I think you are missing some of file or change in file from odoo addon
Check the module : odoo/addons/web_settings_dashboard
This might help you
Thank you