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Editorial Team
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Asked: 2026-05-24T10:53:28+00:00

I used Mvc3AppConverter and converted MVC2 to MVC3 and after getting the compilation error

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I used Mvc3AppConverter and converted MVC2 to MVC3 and after getting the compilation error of Tag-builder I added the System.Web.WebPages reference, but now I am getting the following web config error :

Parser Error Message: Could not load type ‘System.Web.Mvc.ViewTypeParserFilter’.

Source Error: 

 <pages validateRequest="false" pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter" pageBaseType="System.Web.Mvc.ViewPage" userControlBaseType="System.Web.Mvc.ViewUserControl">
 <controls>
     <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" namespace="System.Web.Mvc" tagPrefix="mvc" />
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1 Answer

  1. Editorial Team

    Does your app’s root web.config file have an assembly binding redirect for System.Web.Mvc from versions 1.0-2.0 to 3.0?

    Also, try using the assembly-qualified type name: “System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35”

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