尝试执行简单的http请求时出现JS错误错误

我正在尝试与网关交互并想尝试https://www.npmjs.com/package/@types/request模块。

我试图执行的代码：

export class OAuthAccessor {

    //some stuff

    public static createOAuthAccessToken() {
        this.makeCall();  //this line 11
    }

    private static makeCall() {
        var request = require('request');
        request.post({
            uri: "https://api.sandbox.paypal.com/v1/oauth2/token",
            headers: {
                "Accept": "application/json",
                "Accept-Language": "en_US",
                "content-type": "application/x-www-form-urlencoded"
            },
            auth: {
                'user': this.clientID,
                'pass': this.secret,
                // 'sendImmediately': false
            },
            form: {
                "grant_type": "client_credentials"
            }
        }, function(error, response, body) {
            console.log("error = " + error);
            console.log(body);
        });
    }

}

错误：

file:///.../OAuthAccessor.js:11:30: JS 错误错误：找不到模块“请求”。计算路径'/Users/admin/Library/Developer/CoreSimulator/Devices/ACA260DA-C0FD-4373-8822-4474222199751/data/Containers/Bundle/Application/EE654C43-B629-4817-9252F-appaG4-9252F-AG4EIntegration tns_modules/请求'

我的 Package.json：

{
  "description": "NativeScript Application",
  "license": "SEE LICENSE IN <your-license-filename>",
  "readme": "NativeScript Application",
  "repository": "<fill-your-repository-here>",
  "nativescript": {
    "id": "org.nativescript.IPGIntegration",
    "tns-ios": {
      "version": "3.1.0"
    },
    "tns-android": {
      "version": "3.1.1"
    }
  },
  "dependencies": {
    "@types/request": "^2.0.0",
    "nativescript-theme-core": "~1.0.2",
    "require": "^2.4.20",
    "tns-core-modules": "~3.1.0"
  },
  "devDependencies": {
    "babel-traverse": "6.25.0",
    "babel-types": "6.25.0",
    "babylon": "6.17.4",
    "lazy": "1.0.11",
    "nativescript-dev-typescript": "~0.5.0",
    "typescript": "~2.3.4"
  }
}

我的 tsconfig.json：

{
    "compilerOptions": {
        "module": "commonjs",
        "target": "es5",
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true,
        "noEmitHelpers": true,
        "noEmitOnError": true,
        "lib": [
            "es6",
            "dom"
        ],
        "baseUrl": ".",
        "paths": {
            "*": [
                "./node_modules/tns-core-modules/*",
                "./node_modules/@types/request/*"
            ]
        }
    },
    "exclude": [
        "node_modules",
        "platforms",
        "**/*.aot.ts"
    ]
}

我做了什么：用打字稿模板创建一个新项目

tns create my-app-name --template typescript
npm install typescript (version 2.3.4)
npm install @types/request

我已经尝试重新安装打字稿和类型/请求模块和 node_modules 文件夹，以及其他版本的打字稿。安装该模块时我错过了什么吗？