Hej jag har nyss uppgraderat till VS 2008.
När jag testar siten så får jag ett error på :

<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

Parser Error Message: Could not load file or assembly 'System.Core, Version=3.5.0.0, 
Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. 
The system cannot find the file specified.

Source Error: 


Line 83:
<add assembly="System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
Line 84:
<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
Line 85:
<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
Line 86:
<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
Line 87:
<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
 

Source File: D:\Websites\bitstest.swebowl.se\web.config    Line: 85 

Assembly Load Trace: The following information can be helpful to determine why the
assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
could not be loaded.


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. 

låter ju som om ditt webbhotell inte har stöd för .NET 3.5

Tack det fungerade nu när jag installerat .NET 3.5