Site Map Error

There are actually 5 sitemaps created for my site and the 4th one always gives WARNING message and this is the detail.

All the URLs in your Sitemap have the same priority.
All the URLs in your Sitemap are set to the same priority (not the default priority). Priority indicates the importance of a particular URL relative to other URLs on your site, and doesn't impact your site's performance in search results. If all URLs have the same priority, Google can't tell which are more important.

Any help would be appreciated.

Hello Ibrar,

Please see here: Google - Sitemap have the same priority