I get the following error, when testing some javascript code, transpiled from a typescript file.

Here is the error:

```
Error: _mapAction2.default is not a constructor

```

Here is the line of code that caused the error:

```
var mapAction = new MapAction(MapActionType.POLYGONDRAGGED, []);

```

Here is the original typescript-file **map-action.ts**:

```
import { IMapAction} from './imap-action';
import { MapActionType } from './map-action-type.enum';
import {LatLngLiteral} from 'angular2-google-maps/core';

export class MapAction implements IMapAction{
    type: MapActionType;
    paths: Array<LatLngLiteral>;

    constructor(mapActionType: MapActionType, paths: Array<LatLngLiteral>){
        this.type = mapActionType;
        this.paths = paths;
    }

    public getType(): MapActionType{
        return this.type;
    }

    public getPaths(): Array<LatLngLiteral>
    {
        return this.paths;
    }

}

```

Here is the transpiled .js-file **map-action.js**:

```
"use strict";
class MapAction {
    constructor(mapActionType, paths) {
        this.type = mapActionType;
        this.paths = paths;
    }
    getType() {
        return this.type;
    }
    getPaths() {
        return this.paths;
    }
}
exports.MapAction = MapAction;
//# sourceMappingURL=map-action.js.map

```