小编She*_*hir的帖子

文件的图像

我有这个错误,我无法弄明白.我正在尝试导入角度/核心和角度/平台浏览器.我在stackoverflow上关注了许多链接,但没有一个帮助我.

这是我的package.json文件

{   "name": "angular-2",   "version": "1.0.0",   "scripts": {
    "start": "concurrently \"npm run tsc:w\" \"npm run lite\" ",
    "tsc": "tsc",
    "tsc:w": "tsc -w",
    "lite": "lite-server",
    "typings": "typings",
    "postinstall": "typings install"   },   "license": "ISC",   "dependencies": {
    "angular2": "2.0.0-beta.13",
    "systemjs": "0.19.25",
    "es6-shim": "^0.35.0",
    "reflect-metadata": "0.1.2",
    "rxjs": "5.0.0-beta.2",
    "@angular/router":  "3.0.0-alpha.7",
    "zone.js": "0.6.6"
       },   "devDependencies": {
    "concurrently": "^2.0.0",
    "lite-server": "^2.1.0",
    "typescript": "^1.8.9",
    "typings":"^0.7.11"   } }

依赖

main.ts文件

我想导入,HTTP_PROVIDERS但是给了我错误

"@ angular/http/index没有HTTP_PROVIDERS的导出成员"

我附上了package.json和main.ts文件的图像.

“细节”在* ngFor从未来的服务器，是它包含列表。我正在从中选择一个项目。我想让该按钮在用户单击时处于活动状态，并且它应该保持活动状态，直到用户从列表中选择另一个选项。我正在使用[ngClass]但它正在激活一个按钮1 到 2秒。

<ion-list>
    <button ion-item [ngClass]="configop.selection" *ngFor="let configop of detail" (click)="itemSelected(configop)" >
        <div class="ion-item optionalItem">
            <div class="ion-button">
                <span class="color-code" >
                    <img src="{{configop.image}}">
                    </span>
                    <span class="color-name">{{ configop.name }}</span>
                <span class="color-price">{{ configop.price|currency:'PKR':false }}</span>
            </div>
        </div>
    </button>
</ion-list>

.ts file
    itemSelected(configop: any) {
      if(this.selection !=null){
        if(configop.name == this.selection){
          this.storage.remove('carPaint');
          this.selection=configop.name;
        }
        else {
          this.storage.remove('carPaint');
          this.storage.set('carPaint', configop);
          this.selection=configop.name;}
        }
        else { …