"Attribute 'program' does not exist" for basic node.js project
<p>I created simple node.js application (source code from here <a href="https://azure.microsoft.com/en-us/blog/visual-studio-code-and-azure-app-service-a-perfect-fit/">https://azure.microsoft.com/en-us/blog/visual-studio-code-and-azure-app-service-a-perfect-fit/</a>)</p>

<pre><code>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('&lt;h1&gt;Hello Code and Azure Web Apps!&lt;/h1&gt;');
}).listen(process.env.PORT);
</code></pre>

<p>And clicked VSCode generated launch.json:</p>

<pre><code>{
    "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",
            "type": "node",
            "request": "attach",
            "port": 5858,
            "address": "localhost",
            "restart": false,
            "sourceMaps": false,
            "outDir": null,
            "localRoot": "${workspaceRoot}",
            "remoteRoot": null
        }
    ]
}
</code></pre>

<p>And still when launched I see: </p>

<blockquote>
  <p>Attribute 'program' does not exist.</p>
</blockquote>

<p>Can anybody help what's wrong?</p>