แจ้ง error "Warning: filesize(): stat failed" แก้ยังไงครับ

<?php
// open this directory 
 $filepath = "images";
$myDirectory = opendir($filepath);
// get each entry
while($entryName = readdir($myDirectory)) {
    $dirArray[] = $entryName;
}
// close directory
closedir($myDirectory);
//  count elements in array
$indexCount = count($dirArray);
#Print ("$indexCount files<br>\n");
// sort 'em
sort($dirArray);
// print 'em
print("<TABLE border=1 cellpadding=5 cellspacing=0 class=whitelinks>\n");
print("<TR><TH>Filename</TH><th>Filesize</th></TR>\n");
// loop through the array of files and print them all
for($index=0; $index < $indexCount; $index++) {
        if (substr("$dirArray[$index]", 0, 1) != "." ){ // don't list hidden files
        print("<TR><TD><a href=\"$dirArray[$index]\">$dirArray[$index]</a></td>");
        print("<td>");  print(filesize($dirArray[$index])); print("</td>");
        print("</TR>\n");
    }
}
print("</TABLE>\n");

?>