Import problem after v4 update

Ionic Native
1

Hi, I just started to migrate my ionic 3 application to ionic 4, but during the ionic serve process, I got some incompatibility errors with several packages:

[ng] ERROR in node_modules/@ionic-native/google-maps/index.d.ts(2,10): error TS2305: Module '"C:/programming/studay/node_modules/rxjs/Observable"' has no exported member 'Observable'.
[ng] node_modules/@ionic-native/in-app-browser/index.d.ts(2,10): error TS2305: Module '"C:/programming/studay/node_modules/rxjs/Observable"' has no exported member 'Observable'.
[ng] node_modules/@ionic-native/onesignal/index.d.ts(2,10): error TS2305: Module '"C:/programming/studay/node_modules/rxjs/Observable"' has no exported member 'Observable'.
[ng] node_modules/ionic2-calendar/calendar.service.d.ts(1,10): error TS2305: Module '"C:/programming/studay/node_modules/rxjs/Observable"' has no exported member 'Observable'.
[ng] node_modules/rxjs/Observable.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/Observable'.
[ng] node_modules/rxjs/operators/catchError.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/operators/catchError'.
[ng] node_modules/rxjs/operators/map.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/operators/map'.

I don’t know if I do something wrong or if ionic native have some errors of RxJS operator ?

My package.json

"@ionic-native/google-maps": "^4.9.1",
    "@ionic-native/in-app-browser": "4.11",
    "@ionic-native/onesignal": "4.11",

4.11.0 is the latest version

2

No released ionic-native version is compatible with Ionic 4. You must use the v5 ionic-native beta.

3

Thanks a lot ! You genius

4

What is exactly the right version in package.json for onesignal? in Ionic 4?

“@ionic-native/onesignal”: “x.x.x” ???