Msg: ERROR Error: Uncaught (in promise): Error: Cannot find module 'localhost/../src/handlers/distance.js'

Ionic Framework Ionic Angular
1

I have a angular application and need to use the custom leaflet package:

I am trying to use this in my application. I install it like so:

npm i @raruto/leaflet-elevation

and then at the top of my page imported it like so:
import * as L from ‘@raruto/leaflet-elevation’;

    this.map =  L.map("map").setView([0.0, 0.0], 1);
    let googleRoadMap = L.gridLayer.googleMutant({
      type: 'roadmap'
    });

    googleRoadMap.addTo(this.map);
   (L.control as any).elevation(elevation_config).addTo(this.map);

However I get the following error when I run the app :

Msg: ERROR Error: Uncaught (in promise): Error: Cannot find module 'localhost/../src/handlers/distance.js' Error: Cannot find module 'localhost/../src/handlers/distance.js'

I am new to JS and Angular etc I have come from PHP :slight_smile:
I am wondering how to solve this?

Thanks