Always have an error : Failed prop type: Invalid prop `modifiers` of type `Object` supplied to `withStyles(CalendarDay)`, expected instance of `Set`.

Hi,

The minimum REQUIRED setup seems to not work well… What I missed?

The thing is the calendar seems working but I always have an error in console. I don’t know why. It’s the same thing with DateRangerPicker, SingleDatePicker…

Help please

class DatePicker extends React.PureComponent {
  constructor(props) {
    super(props);
    this.state = {
      focused: null,
      date: moment(),
    };
  }

  render() {
    return (
      <SingleDatePicker
        date={this.state.date} // momentPropTypes.momentObj or null
        onDateChange={date => this.setState({ date })} // PropTypes.func.isRequired
        focused={this.state.focused} // PropTypes.bool
        onFocusChange={({ focused }) => this.setState({ focused })} // PropTypes.func.isRequired
      />
    );
  }
}

[Tam]

I’m also getting Warning: Failed prop type: Invalid prop 'modifiers' of type 'Object' supplied to 'withStyles(CalendarDay)', expected instance of 'Set'. and Warning: Failed prop type: Invalid prop 'modifiers' of type 'Object' supplied to 'CalendarDay', expected instance of 'Set'.

Working my way up the stacktrace, it appears that the default modifiers prop on the compiled CalendarMonth in lib/ is set to an empty object:

var defaultProps = {
  month: (0, _moment["default"])(),
  // ...
  modifiers: {},
  // ...
  verticalBorderSpacing: undefined
};

I don’t know if that’s causing the issue or not.

I’m not polyfilling Set in any way, checking typeof Set === "function" and using Firefox’s toSource() returns function Set() { [native code] }.

[marcos0x]

I have this error: Failed prop type: Invalid prop modifiers.2019-03-01 of type Set supplied to CalendarMonth, expected instance of Set.