Ionic trigger notification

I want a notification every week, Monday at 10:00. How can I do it with ionic?
I use this,
@ionic-native/core”: “^4.6.0”,
@ionic-native/local-notifications”: “^4.6.0”,

I can’t use this.‘visual studio code’ gives the red line for ‘trigger’

What the result of build?

when I don’t use triggers, everything are good.I can get notifications

when i use triggers, i-phone emulator showing only white screen @DanielAccorsi