I'm having trouble with the following sitemap:
<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap>
<loc>http://codingforspeed.com/forum/sitemap.php?fid=1</loc>
<lastmod>2015-07-06 12:42:18</lastmod>
</sitemap>
<sitemap>
<loc>http://codingforspeed.com/forum/sitemap.php?fid=3</loc>
<lastmod>2015-07-06 12:42:18</lastmod>
</sitemap>
<sitemap>
<loc>http://codingforspeed.com/forum/sitemap.php?fid=4</loc>
<lastmod>2015-07-06 12:42:18</lastmod>
</sitemap>
<sitemap>
<loc>http://codingforspeed.com/forum/sitemap.php?fid=5</loc>
<lastmod>2015-07-06 12:42:18</lastmod>
</sitemap>
<sitemap>
<loc>http://codingforspeed.com/forum/sitemap.php?fid=6</loc>
<lastmod>2015-07-06 12:42:18</lastmod>
</sitemap>
<sitemap>
<loc>http://codingforspeed.com/forum/sitemap.php?fid=7</loc>
<lastmod>2015-07-06 12:42:18</lastmod>
</sitemap>
</sitemapindex>
It is validated perfectly, but when I submit to google web master it complains:
Missing XML tag This required tag is missing. Please add it and resubmit.