Error with the Codeigniter/Commom.php file

[eluser]Matt Crowson[/eluser]
I've been getting this error on all of my pages. After the error, my content appears in good condition lower on the page.

A PHP Error was encountered

Severity: Warning

Message: fclose(): supplied argument is not a valid stream resource

Filename: codeigniter/Common.php

Line Number: 54

I've replaced the file, looked at it and can find nothing that would give me the error. With that I still get the error and have found no reference to this error anywhere else online. Any thoughts?

Matt Crowson