Anyone tell me how to clear the sitemap warnings in webmaster tool?
From Webmaster Tools "Help":
Once you've reviewed your Sitemap and made any changes, save it and then resubmit it. It can take up to a day for Google to process the resubmitted Sitemap, so the warning status may continue to display until then.
All I had to do was search for "clear messages" in Webmaster Tools to find this information. Almost too easy.....
Here's the link to the page:
Noramally sitemap gives error of unreachable urls? Try to find out reason behind such urls and re-submit the xml sitemap.