Unable to compile scss

Environment
　Windows 10 Notebook pc

https://www.monster-dive.com/blog/web_creative/20140407_000147.php
I installed the sass environment along this site, but I cannot compile it.
I did the same thing on my desktop, but it works fine.

Specifically

ass --watch C:\Users\---------top.scss:C:\Users\\-----------top.css

Even if you type

>>Sass is watching for changes.Press Ctrl-C to stop.
      error No such file or directory @rb_sysopen-C:\Users\------1*
Errno::EACCES:Permission denied@rb_sysopen-C:\Users\----*1
  Use -- trace for backtrace.

The above error occurs. (----* contains the user name.)

I tried uninstalling and reinstalling both ruby and sash once, but I still keep spitting this error.
There was a different error before, but unlike then, Sass is watching for changes.Press Ctrl-C to stop..

I'm ashamed to say that Ruby and other clean papers are good places, so I looked them up and didn't know what was going on, so I asked you a question.

If you know the cause and how to deal with it, please let us know. (><)