Angular Cli-找不到Dojo模块

时间:2018-07-09 11:20:33

标签: angular dojo arcgis typescript-typings esri

我正在使用Argis 4.8 JS api开发角度应用程序。我需要Dojo / On功能。我在编译器中也没有收到错误。但是,当我编译时,出现错误“找不到模块:错误:无法解析'dojo / on'路径”。我不能使用Dojo类。我该怎么办?

我的完整代码

import {Component, OnInit, ViewChild, ElementRef, Input, Output, EventEmitter} from '@angular/core';
import {loadModules} from 'esri-loader';
import esri = __esri;
import on = require('dojo/on');


function executeIdentifyTask(event: Event | undefined) {
  console.log(event);
}

@Component({
  selector: 'app-esri-map',
  templateUrl: './esri-map.component.html',
  styleUrls: ['./esri-map.component.css']
})

export class EsriMapComponent implements OnInit {

  @ViewChild('mapViewNode') private mapViewEl: ElementRef;

  constructor() {
  }

  map: esri.Map;
  mapView: esri.MapView;
  layer: esri.MapImageLayer;
  identifyTask: esri.IdentifyTask;

  async initializeMap() {

    try {
      const [EsriMap, EsriMapView, MapImageLayer, IdentifyTask, IdentifyTaskProperties] = await loadModules([
        'esri/Map',
        'esri/views/MapView',
        'esri/layers/MapImageLayer',
        'esri/tasks/IdentifyTask',
        'esri/tasks/support/IdentifyParameters'
      ]);


      this.map = new EsriMap({
        basemap: 'dark-gray'
      });


      this.mapView = new EsriMapView({
        container: this.mapViewEl.nativeElement,
        center: [27.1428, 38.4237],
        zoom: 15,
        map: this.map
      });

      this.layer = new MapImageLayer(
        {url: 'https://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer'});

      this.map.add(this.layer);
      this.mapView.when(function () {
        on(this.mapView , 'click' , executeIdentifyTask);
      });

    } catch (error) {
      console.log('We have an error: ' + error);
    }

  }

  ngOnInit() {
    this.initializeMap();
  }

}

1 个答案:

答案 0 :(得分:0)

我知道我参加聚会有点晚了,但是对于其他遇到类似问题的人,我发现这些错误被描述为可以按F12键并找到类型但无法正确编译的错误,通常是由于未将类型放在types: []内的tsconfig.app.json数组中引起的。

我在导入__esri时遇到了类似的问题,并不断收到以下错误消息ERROR in src/app/esri-map/esri-map.component.ts(16,15): error TS2503: Cannot find namespace '__esri'.,并且在将"arcgis-js-api"添加到tsconfig.app.json后,问题得到解决。