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angular - 无法读取未定义的属性“计划”

问题描述

所需的输出是 BsDatePicker并且由于某种原因给了我错误：无法读取 undefined 的属性“计划”。
并且还有警告BsDatepickerModule is under development, BREAKING CHANGES are possible, 请阅读更改日志

Angular-CLI 版本 1.7.4、ngx-bootstrap 版本 3.0.0、Angular 5

这是 html
<input type="text" [(ngModel)]="dateOfBirth" name="dateOfBirth" id="dateOfBirth" bsDatepicker class="form-control"/>

的代码：这是app.module.ts： 

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { BsDatepickerModule } from 'ngx-bootstrap/datepicker';
import { AppRoutingModule } from './app-routing.module';

import { AppComponent } from './app.component';
import { HomeComponent } from './home/home.component';
import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
import { CreateEmployeeComponent } from './employee/create-employee/create-employee.component';


@NgModule({
  declarations: [
    AppComponent,
    HomeComponent,
    CreateEmployeeComponent,
    PageNotFoundComponent 
  ],
  imports: [
    BrowserModule,
    FormsModule,
    BsDatepickerModule.forRoot(),
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }



这是我的 app-routing.module.ts 

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { HomeComponent } from './home/home.component';
import { PageNotFoundComponent } from './page-not-found/page-not-found.component';
import { CreateEmployeeComponent } from './employee/create-employee/create-employee.component';

const routes: Routes = [
   { path : 'home' , component : HomeComponent},
   { path : 'createEmployee', component : CreateEmployeeComponent},
   { path : '', redirectTo: '/home', pathMatch : 'full'},
   { path : '**', component: PageNotFoundComponent}
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }



这是我的 .angular-cli.json

..."testTsconfig": "tsconfig.spec.json",
      "prefix": "app",
      "styles": [
        "../node_modules/bootstrap/dist/css/bootstrap.min.css",
        "../node_modules/ngx-bootstrap/datepicker/bs-datepicker.css",
        "styles.css"
      ],
      "scripts": [
        "../node_modules/jquery/dist/jquery.slim.min.js",
        "../node_modules/popper.js/dist/umd/popper.min.js",
        "../node_modules/bootstrap/dist/js/bootstrap.min.js"
      ],
      "environmentSource": "environments/environment.ts",...

标签： angularangular5web-frontendngx-bootstrap

解决方案

Version 3.0.0 is not stable. Go for latest stable version 2.0.5

Following steps works.

rm -rf node_modules/ngx-bootstrap

package.json : "ngx-bootstrap": "^3.0.0" to "ngx-bootstrap": "2.0.5",

npm install ngx-bootstrap

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