不提供编码：默认为UTF-8。人格洞察力分析

Question

在进行人格洞察分析期间，最后一个代码未起作用，错误消息“未提供编码：默认为UTF-8”。被显示。我不明白我该修复哪一点...非常感谢您的帮助。

export class DateRangeComponent implements OnInit {
selected: any;
alwaysShowCalendars: boolean;
showRangeLabelOnInput: boolean;
keepCalendarOpeningWithRange: boolean;
maxDate: moment.Moment;
minDate: moment.Moment;

ranges: any = {
Today: [moment(), moment()],
Yesterday: [moment().subtract(1, 'days'), moment().subtract(1, 'days')],
'Last 7 Days': [moment().subtract(6, 'days'), moment()],
'Last 30 Days': [moment().subtract(29, 'days'), moment()],
'This Month': [moment().startOf('month'), moment().endOf('month')],
'Last Month': [
  moment()
    .subtract(1, 'month')
    .startOf('month'),
  moment()
    .subtract(1, 'month')
    .endOf('month'),
 ],
};

isInvalidDate = (m: moment.Moment) => {
  return this.invalidDates.some(d => d.isSame(m, 'day'));
};

constructor() {
 this.maxDate = moment().add(2, 'weeks');
 this.minDate = moment().subtract(3, 'days');

 this.alwaysShowCalendars = true;
 this.keepCalendarOpeningWithRange = true;
 this.showRangeLabelOnInput = true;
 this.selected = {
   startDate: moment().subtract(1, 'days'),
   endDate: moment().subtract(1, 'days'),
 };
}
rangeClicked(range) {
  console.log('[rangeClicked] range is : ', range);
}
datesUpdated(range) {
 console.log('[datesUpdated] range is : ', range);
}
}