The correct namespace should be http://www.sitemaps.org/schemas/sitemap/0.9
Google Search console shows following error:
Your Sitemap or Sitemap index file doesn't properly declare the namespace.
Expected: http://www.sitemaps.org/schemas/sitemap/0.9
Found: http://www.google.com/schemas/sitemap/0.90
Tag: urlset
The correct namespace should be
http://www.sitemaps.org/schemas/sitemap/0.9Google Search console shows following error:https://support.google.com/webmasters/answer/183668?hl=en