unable to evaluate symlinks in Dockerfile
<p>When I input</p>

<p><code>docker build -t tutum/apache-php .
</code></p>

<p>in docker, it will output the error</p>

<p><code>unable to prepare context: unable to evaluate symlinks in Dockerfile path: GetFileAttributesEx C:\User\gao\Dockerfile: The system cannot find the file specified.
</code></p>

<p>What does this mean? Any advice is helpful. Thank you.</p>