"All the URLs in your Sitemap have the same priority." - warning in GWT

Getting this error in google webmaster tools for a couple of my sitemaps:
"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

Can anything be done about this?

Check this: Google - Sitemap have the same priority