Exercise 4 Correct Answer, still fail?

[Ken Ingram]

The Code:

const fs = require('fs');
const file = process.argv[2];
const str = fs.readFileSync(file).toString();
const result = str.split('\n');
console.log(result.length-1);

Why the FAIL?

[jordanSu]

The second testing result shows that you used synchronous method, however in Exercise 4 an asynchronous method should be used.

[César Carruitero]

Closing since question was answered. Thanks @jordanSu