I got the following when I try to run the code after successfully passing the task:
$ node app.js
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
path.js:1142
cwd = process.cwd();
^
Error: ENOENT: no such file or directory, uv_cwd
at Object.resolve (path.js:1142:25)
at startup (bootstrap_node.js:129:32)
at bootstrap_node.js:542:3