angular“http-in-memory-web-api”找不到模块'@angular/http‘错误

ng version

npm install @angular/http

import { HttpModule } from '@angular/http';

import { HttpClientModule } from '@angular/common/http';

import { HttpClientModule } from '@angular/common/http';

@NgModule({
  imports: [
    HttpClientModule,
    // 其他模块
  ],
  // 其他配置
})
export class AppModule { }

npm install @angular-in-memory-web-api --save-dev

import { HttpClientInMemoryWebApiModule } from '@angular-in-memory-web-api';
import { InMemoryDataService } from './in-memory-data.service';

@NgModule({
  imports: [
    HttpClientModule,
    HttpClientInMemoryWebApiModule.forRoot(InMemoryDataService, { dataEncapsulation: false }),
    // 其他模块
  ],
  // 其们配置
})
export class AppModule { }

import { InMemoryDbService } from '@angular-in-memory-web-api';

export class InMemoryDataService implements InMemoryDbService {
  createDb() {
    const items = [
      // 你的数据
    ];
    return { items };
  }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { HttpClientModule } from '@angular/common/http';
import { HttpClientInMemoryWebApiModule } from '@angular-in-memory-web-api';
import { InMemoryDataService } from './in-memory-data.service';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    HttpClientModule,
    HttpClientInMemoryWebApiModule.forRoot(InMemoryDataService, { dataEncapsulation: false })
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }