How can I solve this error to call data frame in R? : <p>So when I run R and try to read a file, it gives me an error like this
<a href="https://i.stack.imgur.com/fmESI.jpg" rel="nofollow noreferrer">Error message</a></p>

<p>But I definitely have my file in my directory. As I can tell below photo.</p>

<p><a href="https://i.stack.imgur.com/voeCS.jpg" rel="nofollow noreferrer">working directory</a></p>

<p>How can I solve this problem??</p>
