Problem in deploying a asp.net website in IIS7

Server Error in '/' Application.<br />
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The parameter 'frameworkName' cannot be an empty string.<br />
Parameter name: frameworkName <br />
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. <br />
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Exception Details: System.ArgumentException: The parameter 'frameworkName' cannot be an empty string.<br />
Parameter name: frameworkName<br />
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Source Error: <br />
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An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  <br />
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Stack Trace: <br />
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[ArgumentException: The parameter 'frameworkName' cannot be an empty string.<br />
Parameter name: frameworkName]<br />
   System.Runtime.Versioning.FrameworkName..ctor(String frameworkName) +7656787<br />
   System.Web.Compilation.MultiTargetingUtil.InitializeKnownAndLatestFrameworkNames() +190<br />
   System.Web.Compilation.MultiTargetingUtil.EnsureFrameworkNamesInitialized() +146<br />
   System.Web.Compilation.BuildManager.Initialize() +282<br />
   System.Web.Compilation.BuildManager.InitializeBuildManager() +11434855<br />
   System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags, PolicyLevel policyLevel, Exception appDomainCreationException) +902<br />
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[HttpException (0x80004005): The parameter 'frameworkName' cannot be an empty string.<br />
Parameter name: frameworkName]<br />
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11571552<br />
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +141<br />
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4826437<br />
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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.431