Silverlight Applications to Access SharePoint 2010 Data is not loading

I am trying to load Silverlight DataGrid Control in my SharePoint 2010, I have followed this code example linl. http://msdn.microsoft.com/en-us/library/ff728647.aspx#Y1200.

I have just replaced this codelines(in MainPage() method):

List Projects = context.Web开发者_高级运维.Lists.GetByTitle("Calendar");

string camlQueryXml ="asd"+ ""+ "";

Output Error:Could not download the Silverlight application or the Silverlight Plugin did not load.

Check this link http://msdn.microsoft.com/en-us/library/cc265156(v=vs.95).aspx

The silverlight version selected while creating the application should match with the version of plugin installed.