'Sys' is undefined error after upgrd to 4.0

[Jack Voss]

I had been receiving the above error after upgrading a project from 2.0 to 4.0

I modified these portions of my web.config file and the controls worked properly again.

<system.web>

<assemblies>

        <add assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

        <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />

        <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />

        <add assembly="System.Speech, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

        <add assembly="Telerik.ReportViewer.WebForms, Version=4.2.10.1221, Culture=neutral, PublicKeyToken=a9d7983dfcc261be" />

        <add assembly="Telerik.Reporting, Version=4.2.10.1221, Culture=neutral, PublicKeyToken=a9d7983dfcc261be" />

      </assemblies>

    </compilation>

    <httpHandlers>

      <add path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" validate="false"/>

      <add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false"/>

      <add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false"/>

      <add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false"/>

      <add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/>

      <add type="Telerik.ReportViewer.WebForms.HttpHandler, Telerik.ReportViewer.WebForms, Version=4.2.10.1221, Culture=neutral, PublicKeyToken=a9d7983dfcc261be" path="Telerik.ReportViewer.axd" verb="*" validate="true" />

    </httpHandlers>

 </system.web>

  

 <system.webServer>

    <handlers>

      <remove name="ChartImage_axd"/>

      <add name="ChartImage_axd" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" preCondition="integratedMode"/>

      <remove name="Telerik_Web_UI_SpellCheckHandler_axd"/>

      <add name="Telerik_Web_UI_SpellCheckHandler_axd" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" preCondition="integratedMode"/>

      <remove name="Telerik_Web_UI_DialogHandler_aspx"/>

      <add name="Telerik_Web_UI_DialogHandler_aspx" path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" preCondition="integratedMode"/>

      <remove name="Telerik_RadUploadProgressHandler_ashx"/>

      <add name="Telerik_RadUploadProgressHandler_ashx" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" preCondition="integratedMode"/>

      <remove name="Telerik_Web_UI_WebResource_axd"/>

      <add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource"/>

      <add name="Telerik.ReportViewer.axd_*" type="Telerik.ReportViewer.WebForms.HttpHandler, Telerik.ReportViewer.WebForms, Version=4.2.10.1221, Culture=neutral, PublicKeyToken=a9d7983dfcc261be" path="Telerik.ReportViewer.axd" verb="*" preCondition="integratedMode" />

    </handlers>

  

 </system.webServer>

now the above is not the totality of the web config,  I modified the assemblies and httphandlers under system.web and the handlers under system.webserver.

I wanted to post this here in case someone else experianced the same issue.

[Iana Tsolova]

Hello Jack,

Thank you for sharing your experience with the community. We are sure your findings will help other developers facing the same problem.

Regards,
Iana
the Telerik team

[Yeroon]

Thanks for your post. Helped me out!

I used the telerik upgrade wizard in VS2010 (2012 Q2 release). All went fine, ran fine on development machine, but somehow needed these adjustments in deployment evironment.