Error after creating a network of WordPress sites

I just updated my WordPress and began the process of creating a network of sites. Everything seemed to be going well until I got this error “strpos() [function.strpos]: Empty delimiter in D:\Hosting\4350088\html\development\Capstone\wp-admin\network.php on line 317”.

This is what that code looks like:

$home_path = 0 === strpos( $abspath_fix, $document_root_fix ) ? $document_root_fix . $base : get_home_path();

It also has a warning below that saying:

Warning: An existing WordPress network was detected.

As far as I know, this is the first network I have started. Is this something to do with how I have my permalinks set up?

Please Help,
Thank You