netplan does not check for the existence of the interface described in the configuration file

[Tecnologia]

This is not a complaint or a bug, but rather a hint of improvement for netplan.io.

I suggest that when executing the "netplan try" command, it should verify that the interface that was described in the configuration file exists, and if it does not exist, inform the situation to the user.

In the case of creating a virtual interface (in this case, the interface will not actually exist), a "virtual: yes" or similar parameter is required for the interface to be created.