小编Sou*_*rty的帖子

每次我尝试安装任何软件包,或者即使我尝试做,npm install我仍然会收到此错误.我不知道为什么我会收到错误.我是Angular 4的新手,它只有一个星期,所以任何任何线索都将受到赞赏.我使用节点-v 8.8.1和@ angular/cli 1.4.9.

这是我的package.json.

{
    "name": "events-across", 
    "version": "0.0.0", 
    "license": "MIT", 
    "scripts": {
        "ng": "ng", 
        "start": "ng serve", 
        "build": "ng build", 
        "test": "ng test", 
        "lint": "ng lint", 
        "e2e": "ng e2e"
    }, 
    "private": true, 
    "dependencies": {
        "@angular/animations": "^4.2.4", 
        "@angular/common": "^4.2.4", 
        "@angular/compiler": "^4.2.4", 
        "@angular/core": "^4.2.4", 
        "@angular/forms": "^4.2.4", 
        "@angular/http": "^4.2.4", 
        "@angular/platform-browser": "^4.2.4", 
        "@angular/platform-browser-dynamic": "^4.2.4", 
        "@angular/router": "^4.2.4", 
        "angular-font-awesome": "^2.3.7", 
        "angular4-carousel": "^3.1.8", 
        "bootstrap": "^4.0.0-beta", 
        "core-js": "^2.4.1", 
        "font-awesome": "^4.7.0", 
        "ng2-opd-popup": "^1.1.21", 
        "rxjs": "^5.4.2", 
        "zone.js": "^0.8.14"
    }, 
    "devDependencies": {
        "@angular/cli": "1.4.9", 
        "@angular/compiler-cli": …

我正在尝试在仪表板页面中插入通知工具提示,但工具提示无法正常工作.我是Angular的新手,所以任何关于此的线索都将受到高度赞赏.

module.ts

..从'@ angular/material'导入{MatTooltipModule}; ..

@NgModule({
..
MatTooltipModule
..})

component.html

    <div class="notifications">
        <i class="fa fa-bell fa-2x" aria-hiden="true" matTooltip="Tooltip!"></i>
    </div>