I run the project on the emulator, everything works fine.
I try to run on a real device, it displays a message given by an application from a non-certified developer.
Well, after which offers in the system settings, you must give permission to run the application.
I'm going to settings, but in the settings there is no menu item: Profiles and device management .
I understand that this menu item appears only if a profile (certificate) is loaded into the system. Those. does it mean that now during installation the certificate is not installed? But why, and how to fix it?