问promise中未捕获的错误: time.split不是Angular 10中的函数

EN

core.js:4197 ERROR Error: Uncaught (in promise): TypeError: time.split is not a function
TypeError: time.split is not a function
    at Function.parseTime (time-adapter.ts:16)
    at Function.formatTime (time-adapter.ts:27)
    at TimepickerDirective.set (ngx-timepicker.directive.ts:88)
    at TimepickerDirective.writeValue (ngx-timepicker.directive.ts:159)
    at shared.ts:114
    at model.ts:1091
    at Array.forEach (<anonymous>)
    at FormControl.setValue (model.ts:1090)
    at ng_model.ts:338
    at ZoneDelegate.invoke (zone.js:386)
    at resolvePromise (zone.js:832)
    at zone.js:898
    at ZoneDelegate.invokeTask (zone.js:421)
    at Object.onInvokeTask (core.js:27424)
    at ZoneDelegate.invokeTask (zone.js:420)
    at Zone.runTask (zone.js:188)
    at drainMicroTaskQueue (zone.js:601)
    at ZoneTask.invokeTask [as invoke] (zone.js:507)
    at invokeTask (zone.js:1671)

*<mat-form-field>
    <input matInput placeholder="{{datePlaceHolder}}" [matDatepicker]="picker" [(ngModel)]="datePart" (ngModelChange)="datePartChange($event)"/>
    <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
    <mat-datepicker #picker></mat-datepicker>
</mat-form-field><br/>

<mat-form-field>
    <input matInput placeholder="{{timePlaceHolder}}" [format]="timeFormat"  readonly [(ngModel)]="timePart" (ngModelChange)="timePartChange($event)" [ngxTimepicker]="timepicker"/>
    <ngx-material-timepicker-toggle matSuffix [for]="timepicker"></ngx-material-timepicker-toggle>
    <ngx-material-timepicker [minutesGap]="minutesGap" #timepicker></ngx-material-timepicker>
</mat-form-field>*