Why am I getting this error “one or more unbound namespace prefixes” for Sitemap.xml

Question

I have submitted my sitemap.xml into google webmaster tools. We found error such as "The XML Sitemap cannot be parsed because it contains one or more unbound namespace prefixes. For example, this error is generated when is found in a Sitemap without prior xmlns:xhtml="http://www.w3.org/1999/xhtml"."

My sitemap url: http://www.cadservicesindia.com/sitemap.xml

Answer 1

Looks like this first line in your XML file is mis-formatted. It seems to have the url pasted twice, likely by mistake:

<urlset xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9             http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

try this line instead:

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> 

Answer 2

Had the same issue. Try adding this at the top

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">