当我尝试使用“:”读取元素时出现错误
<item>
<guid isPermaLink="false">GUID</guid>
<pubDate>Thu, 31 Oct 2013 07:18:00 +0000</pubDate>
<atom:updated xmlns:atom="http://www.w3.org/2005/Atom">2013-11-01T14:41:42.635+01:00</atom:updated>
<category domain="http://www.blogger.com/atom/ns#">Wave3</category>
<title>Vídeo</title>
<description>Descriontion</description>
<link>url</link>
<author>noreply@blogger.com</author>
<media:thumbnail xmlns:media="img" height="72" width="72" />
<thr:total xmlns:thr="http://purl.org/syndication/thread/1.0">9</thr:total>
</item>
objItm.Element("media:thumbnail")
'"media:thumbnail"' 引发了类型为 'System.Xml.XmlException' System.Xml.Linq.XElement 的异常
有人可以帮助我吗?