我正在尝试使用以下行导入HttpRequest，HttpHandler，HttpEvent，HttpInterceptor：
从{HttpRequest，HttpHandler，HttpEvent，HttpInterceptor}导入 '@角/普通/ HTTP';
但是我一直得到同样的错误：
找不到'@ angular / common / http'模块
的package.json：
{
"name": "coreui",
"version": "1.0.0-alpha.4",
"description": "Open Source Bootstrap Admin Template",
"author": "",
"url": "http://coreui.io",
"copyright": "Copyright 2017 creativeLabs Łukasz Holeczek",
"license": "MIT",
"angular-cli": {},
"scripts": {
"ng": "ng",
"start": "ng serve",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/common": "2.4.9",
"@angular/compiler": "2.4.9",
"@angular/core": "2.4.9",
"@angular/forms": "2.4.9",
"@angular/http": "2.4.9",
"@angular/platform-browser": "2.4.9",
"@angular/platform-browser-dynamic": "2.4.9",
"@angular/router": "3.4.9",
"@angular/upgrade": "2.4.9",
"chart.js": "2.5.0",
"core-js": "2.4.1",
"moment": "2.17.1",
"ng2-bootstrap": "1.4.0",
"ng2-charts": "1.5.0",
"promise-polyfill": "7.1.0",
"rxjs": "5.2.0",
"ts-helpers": "1.1.2",
"zone.js": "0.7.2"
},
"devDependencies": {
"@angular/cli": "^1.7.3",
"@angular/compiler-cli": "2.4.9",
"@types/jasmine": "2.5.45",
"@types/node": "7.0.8",
"codelyzer": "2.0.1",
"jasmine-core": "2.5.2",
"jasmine-spec-reporter": "3.2.0",
"karma": "1.5.0",
"karma-chrome-launcher": "2.0.0",
"karma-cli": "1.0.1",
"karma-coverage-istanbul-reporter": "0.3.0",
"karma-jasmine": "1.1.0",
"karma-jasmine-html-reporter": "0.2.2",
"protractor": "5.1.1",
"ts-node": "2.1.0",
"tslint": "4.5.1",
"typescript": "2.2.1"
},
"main": "karma.conf.js"
}
我该如何解决这个问题？