I'm curious about this as well because my blog seems to not be found on my xml sitemap. I don't know why because it's a wordpress and I have a plugin for it, but they don't seem to be keeping it updated. When I go into my google webmaster tools, it shows like 1500 sites that can't be found in sitemap.
i am also getting sitemap crawler errors because of my mistake in redirection rules my robots.txt. now it is solved. but these errors are still there. tripbuilder, Do you mean again submiting the sitemaps files or do you want me to submit my site again google webmaster . Please clarify us
Go to .htaccess file in the website's directory and make redirects from urls with htpp status code 404 to urls with 200 Redirect oldfile.php example.com/newfile.php
It's actually natural to have pages which are restricted to Google bots. You don't want your admin pages to be cached do you? Also, it takes time for the updates on robots.txt and htaccess to show in GWT. give it a week or two and then check again.
Just update your robots.txt, sitemap.xml file. Log in to your webmaster tools after login see at left hand side there is a menu. Browse the menu and click on 'Site configuration' link after that it will show you 'Crawler access' link, Just click on that link after that in center you will be able to see a "Remove Url' click on that link and put all the error links in box and request for remove url. I hope this will help you.
Are you referring to content in the sitemap restricted by the Robots.txt file, or to the 10 "Not Found" links?
Modify your robots.txt file and give access to important pages and categories of your site or, it won't be visible in google search results cz due to the restrictions by robots.txt, crawler won't index those particular pages or segments.
You can fix those by checking your current .htaccess file and robots.txt file. You might want to work on some redirection for you 404 pages and those restricted to robots as well. If you have a web developer, ask him those files or if you have it on your own, then you should do it and fix those problems immediately.