When working with Data views and filters in Sharepoint Designer, the Sharepoint page may some times throw an odd error like

 

 

No item exists at http://sitename/pagename.aspx?Id=2.It may have been deleted or renamed by another user.

 

Typical cause for this issue is that a dataview webpart within the page  uses a filter condition that maps ID property of a list to a querystring parameter whose name is ID.

 

Data view parameter 

 

The issue can be easily solved by renaming the querystring parameter to a different name other than ID. After renaming the parameter the Sharepoint page will work as expected.