Cannot Verify Stylish CSS

[Bouncey]

I am using Ubuntu 16.04LTS,
The standard terminal,
and atom editor.

My code:
programCSS.js

var express = require('express');
var app = express();

app.use(require('stylus').middleware(process.argv[3]));
app.use(express.static(process.argv[3]));

app.listen(process.argv[2]);

terminal outputs:
expressworks run programCSS.js

~/expressworks$ expressworks run programCSS.js
p {
  color: #f00;
}

expressworks verify programCSS.js

~/expressworks$ expressworks verify programCSS.js
✗ Error connecting to http://localhost:23697/main.css: connect ECONNREFUSED 127.0.0.1:23697
✗ Error connecting to http://localhost:23698/main.css: connect ECONNREFUSED 127.0.0.1:23698

If you need any more info, please let me know.

[azat-co]

try killall node

[Hassanbhb]

i have the same problem, but on windows 7.

Edit: right after writing this comment, i verified the solution one last time and it passed, i don't know what caused the error or how it fixed it self, but tried to verify again and it produced the same error again.