dijit/Calander import error

I have followed https://github.com/dojo/interop#dijitwrapper and tried use dijit wapper
but import * as CalendarDijit from 'dijit/Calendar'; was not recognized even after 'npm install @dojo/interop '
and i got an two conflicting update in discordapp that "dijit wrapper won't work at the moment as the 3.0.0 cli-build-app command does not support externals - Externals support will be included in the upcoming 4.0.0 release."
and
"you still need to set up dojo/dijit as normal, that means installing those dependencies, setting up the dojo 1 loader etc, see the dojo 1 tutorials if you need any help setting that up"

Bit assist required here!