Why my feed is invalid?

I created an RSS feed manually. but when I use it in some Feed sites or social bookmarking sites, it says: "Couldn't parse RSS file!"
Anyone can check what's wrong with it, please?

The feed URL is:
http://twesto.com/mostpopular.xml

Thanks

 

I got this error message " XML Parsing Error: not well-formed
Location:
Line Number 2, Column 1:<xml version="1.0" encoding="UTF-8">
^"

maybe have a look at line 2 eh?

Good luck

 

Title, link, and description should be inside <channel>, not before it. they are not valid root elements in a XML RSS feed. Also a LOT of XML parsers choke on non UTF encodings, so as convenient as Windows-1256 might be for you when working in Arabic, get that thing to UTF-8.

<?xml version="1.0" encoding="utf-8" ?>
<rss version="2.0">
	<channel>
		<title>تويستو Twesto</title>
		<description>
			Twesto web services. تويستو لخدمات الويب.
		</description>
		<link>http://twesto.com/</link>
		<item>
			<title>نجوم اف ام</title>
			<description>الإستماع إلى البث المباشر لإذاعة نجوم اف ام على الإنترنت.</description>
			<link>http://twesto.com/nogoomfm/</link>
		</item>
		<item>
			<title>Nogoom FM</title>
			<description>Listen to Nogoom FM live stream on the internet.</description>
			<link>http://twesto.com/nogoomfm/</link>
		</item>
	</channel>
</rss>

Code (markup):

Though a nice side effect is the ability to run multiple channels per feed.

.. and be bloody well certain <?xml is the FIRST line of code, some parsers will choke if you even have a CR/LF before it. that < MUST be the first character for best compatibility. SOME parsers will also screw up if you leave out the space between " and ?> -- which is really stupid, but XML was designed to make the parser as simple as possible and the people writing XML work harder.