site error when i tranfered the site from xp to vista

hello guys

i have a problem with my site. I had installed windows xp on my pc. I was working with visual studio 2005 my web site and also i have installed net frwamework 3.5. Today i installed windows vista( i had copied my website) and i transfered the site to windows vista. When i am going to open Default.aspx. displaying an error which says: The type intializer for 'Microsoft.Web.Design.ExtenderInformationServiceProvider' threw an exception

I know this may not be the response you are looking for, but have you tried reinstalling VS 2005?

Did you install theAjax Control Toolkit? If so, was it the latest version?

i am getting this error when i am going to run the site

Server Error in '/' Application.

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Configuration Error

Description:An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message:Child nodes not allowed.

Source Error:

Line 116: <compilers>Line 117: <compiler language="c#;cs;csharp" extension=".cs" compilerOptions="/warnaserror-" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">Line 118: <providerOption name="CompilerVersion" value="v3.5" />Line 119: </compiler>Line 120: <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" compilerOptions="/optioninfer+" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">

Source File:E:\WebPages\code\web.config Line:118

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Version Information: Microsoft .NET Framework Version:2.0.50727.312; ASP.NET Version:2.0.50727.833

Hi:

Please check out these posts for the same issue:

http://forums.asp.net/t/1114611.aspx

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1673947&SiteID=1

Regards