无法绑定到“pickerType”,因为它不是“owl date time”的已知属性

您必须向@NgModule中添加OwlDateTimeModule和OwlNativeDateTimeModule,如下所示:

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { MyTestApp } from './my-test-app';

import { OwlDateTimeModule, OwlNativeDateTimeModule } from 'ng-pick-datetime';

@NgModule({
 imports: [ 
     BrowserModule, 
     OwlDateTimeModule, 
     OwlNativeDateTimeModule,
 ],
 declarations: [ MyTestApp ],
 bootstrap:    [ MyTestApp ]
})
export class MyTestAppModule {}

请参见此处:

https://www.npmjs.com/package/ng-pick-datetime