TypeError: Cannot read property 'on' of undefined

[Oumeima-IbnElfekih]

it seems like there is a problem in this one :

i got a problem like this when i add it :
_createClass(DraggablePolyline, [{
64 | key: 'componentWillMount',
65 | value: function componentWillMount() {

66 | this.map.on('mousemove', this.onMapMouseMove);
| ^ 67 | }
68 | }, {
69 | key: 'componentWillUnMount',

[frankenbubble]

This only works with react-leaflet 1.x . That error happens if you try use it with react-leaflet 2.x