RDL file - Reporting Services showing HTML in design view -

RDL file RDL file for any reason - Reporting Services is showing HTML in Design View in Visual Studio

Why

I can think of it that it uses the Pole Chart and I am not setting it. Do i need it ????

VS 2008 will attempt to display an error message as HTML if the RDL is an error ( For example, an unfamiliar tag), though HTML does not render properly, resulting in plain HTML-visible design view

If you are using custom components that are not installed, then it may be Thinks there is an error in RDL.