对于基本的node.js项目,“属性”程序不存在

var http = require('http');
http.createServer(function (req,res) {
    console.log('Got request for ' + req.url);
    res.writeHead(200,{'Content-Type': 'text/html'});
    res.end('<h1>Hello Code and Azure Web Apps!</h1>');
}).listen(process.env.PORT);

并点击VSCode生成的launch.json：

{
    "version": "0.2.0","configurations": [
        {
            "name": "Launch","type": "node","request": "launch","program": "${workspaceRoot}/app.js","stopOnEntry": false,"args": [],"cwd": "${workspaceRoot}","preLaunchTask": null,"runtimeExecutable": null,"runtimeArgs": [
                "--nolazy"
            ],"env": {
                "NODE_ENV": "development"
            },"externalConsole": false,"sourceMaps": false,"outDir": null
        },{
            "name": "Attach","request": "attach","port": 5858,"address": "localhost","restart": false,"outDir": null,"localRoot": "${workspaceRoot}","remoteRoot": null
        }
    ]
}

而当我启动时，我看到：

有人可以帮忙吗？