在Visual Studio下编译时找不到模块

我有一个非常简单的TypeScript应用程序，它使用webpack编译得很好，但是当试图在Visual Studio中构建时，给了我一个错误"Build:Cannot find module 'react'"。我被卡住了，任何帮助都很感激。

package.json:

{
  "name": "react-router-test",
  "version": "1.0.0",
  "description": "",
  "main": "./dist/bundle.js",
  "scripts": {
    "test": "echo '"Error: no test specified'" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "react": "^15.4.0",
    "react-dom": "^15.4.0",
    "react-router": "^3.0.0"
  },
  "devDependencies": {
    "@types/react": "^0.14.49",
    "@types/react-dom": "^0.14.18",
    "@types/react-router": "^2.0.39",
    "babel-cli": "^6.18.0",
    "babel-core": "^6.18.2",
    "babel-loader": "^6.2.7",
    "babel-preset-es2015": "^6.18.0",
    "babel-preset-react": "^6.16.0",
    "ts-loader": "^1.2.1",
    "typescript": "^2.0.10",
    "webpack": "^1.13.3"
  }
}

webpack.config.js:

    module.exports = {
    entry: "./src/Index.tsx",
    output: {
        filename: "./dist/bundle.js"
    },
    resolve: {
        // Add '.ts' and '.tsx' as resolvable extensions.
        extensions: ["", ".webpack.js", ".web.js", ".ts", ".tsx", ".js"]
    },
    module: {
        //loaders: [
        //    { test: /'.tsx$/, exclude: /node_modules/, loader: 'babel-loader?presets[]=es2015&presets[]=react!ts-loader' }
        loaders: [
            {
                test: /'.ts(x?)$/,
                loader: "babel-loader!ts-loader"
            },
        ]
    },
    devServer: {
        contentBase: ".",
        host: "localhost",
        port: 8081
    },
    externals: {
        "react": "React",
        "react-dom": "ReactDOM"
    },
}

tsconfig.json:

{
  "compilerOptions": {
    "noImplicitAny": false,
    "noEmitOnError": true,
    "removeComments": false,
    "sourceMap": true,
    "target": "es6",
    "jsx": "preserve",
    "module": "commonjs"
  }
}

Hello.tsx:

import * as React from "react";
interface IHelloProps { compiler: number }
export class Hello extends React.Component<IHelloProps, {}> {
    render() {
        return <div > Hell no 2!</div >
    }
}