App development

hie all…i m creating app …it was installed properly but i m not able to see its icon on erp deskstop…

it shows mi following error:-

plz help…

Try adding something to your app first

https://frappe.github.io/frappe/user/en/tutorial/users-and-records

i did that…i created Meeting Doctype…


still its give me an error

Are the roles added to doctype?

Are those roles given to the user?