“The Web Application project ‘MyWebApp’ is configured to use IIS.
To access local IIS Web sites, you must install the following IIS components
IIS 6 Metabase and IIS 6 Configuration Compatibility Authentication”
This happens when a project created using Visual Studio 2008 is imported opened using Visual Studio 2010. To solve this issue do the following
1) Open your CSProj file in a text editor
2) Replace the following lines
<UseIIS>True</UseIIS>
with
<UseIIS>False</UseIIS>
and
<IISUrl>http://localhost/site</IISUrl>
with
<CustomServerUrl> http://localhost/site </CustomServerUrl>