Timeline.js Unexpected token (73:19)

[caleroni5]

When add to project, I get
ERROR in .//react-calendar-timeline/src/lib/Timeline.js
Module parse failed: C:*\node_modules\react-calendar-timeline\src\lib\Timeline.js Unexpected token (73:19)
You may need an appropriate loader to handle this file type.
|
| export default class ReactCalendarTimeline extends Component {
| static propTypes = {
| groups: PropTypes.oneOfType([PropTypes.array, PropTypes.object]).isRequired,
| items: PropTypes.oneOfType([PropTypes.array, PropTypes.object]).isRequired,
@ .//react-calendar-timeline/src/index.js 1:0-37

[caleroni5]

sorry, already solved #134