Total URL in sitemap = 0 / Unsupported file format

I generated one sitemap with use of your free sitemap generator tool. I submitted the link to Google and its status came back as OK.

Problem is, under URL submitted all I'm seeing is --. When I click on more details it reads:

Total URLs in Sitemap 0
Indexed URLs in Sitemap –

Why is it saying there are 0 URLs in the sitemap??? What could I be doing wrong? The generator indexed over 8,000 pages of my site.

I did many try to fix the problem.

To fix the problem I did save .xml file as www.myweb.com/sitemap.xml location but this time I got following error

Unsupported file format
Your Sitemap does not appear to be in a supported format. Please ensure it meets our Sitemap guidelines and resubmit.

earlier it was www.myweb.com/file/sitemap.xml for which I get OK status.

Why google Webmaster tool gives different status Error for same .xml file ?

Any help would be GREATLY appreciated!

Hello,

This has always been a case where you enter www and redirect to non-www or the other way around. For example, if I enter a url of www.websecurity.mobi and the site references on websecurity.mobi, it will not find any pages. Visit your site, click on any of your internal links and look at the frist part - is it www, if so, enter the url just as your site is setup.

PM me your site's url and we'll go from there.

Regards,

Jim.

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