Missing CSS with Ionic Creator

I created an app with Ionic Creator and then downloaded the files using CLI.

While I loaded the files using ionic serve, the Network tab of the debugger shows
preview-frame.css in the /css folder shows missing.

In fact, the downloaded setup does not contain the css folder at all.

What could be the reason for this ?

I have attached screenshot for the issue.

How come the mime type is text/html?

Not sure… I am using Google Chrome Canary …

But the css folder is completely absent in the download !!