Sitemap issue

[vanGoGh-creative]

On this link you can see the sitemap: http://bit.ly/2XC9J5G.
I don't understand what the error is.
From the search console I have the following indication: "The XML Sitemap cannot be analyzed because it contains one or more prefixes of the unassociated namespace. For example, the error is generated when xhtml:linknot preceded by xmlns:xhtml="http://www.w3.org/1999/xhtml" is detected in a Sitemap.
Will you help me, please solve?
Thank you very much.</xhtml:link>

Massimiliano

[effectdigital]

This is a dev error not an SEO error. You'd probably have more luck posting on Slack where people have had similar issues in the past. Seems weird but don't have any idea how to solve it

[seoelevated]

You are missing the namespace for xhtml. There are multiple ways to format a sitemap, but you are using xhtml format for your hreflang tags. You can do it differently without using xhtml. But if you do it the way you are doing it, you need to declare the namespace up in the URLSET tag.

So, where you have:

<urlset <span="" class="crayon-h">xmlns</urlset>="http://www.sitemaps.org/schemas/sitemap/0.9">

It would instead need to be like

<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">

[Tom-Anthony]

seoelevated is correct.

Reference example from Google here: https://support.google.com/webmasters/answer/189077?hl=en