Undefined Offset error message after upgrade

[CEDillard]

I just upgraded my 4.8c to 4.8.1 by selectively copying the changed files listed in the description of the upgrade.
When I go into the gallery (index.php) I get the following message:

Notice: Undefined offset: 0 in E:\Accounts\fdralumn\gallery\index.php on line 15

I am not a php programmer but did pull down an editor and looked at the line.
Lines 15-17 appear to be:

if ( is_numeric($argv[0]) ) {
header("Location: {$Globals['maindir']}/showphoto.php?photo={$argv[0]}");
exit;

The software appears to be working but I would like to elminate this error message popping up when someone first goes into the gallery.

Thanks for your advice.

[Chuck S]

Basically this is because your error reporting is set abnormally high.

It is telling you that variable is empty. Of course it is. Thats just a double check to ensure that if a photo variable is passed to send them to showphoto instead of index.

You can correct the error reporting in php.ini or I have suggested to a few users they can safely remove those lines 15-17