Parser Error Message: Could not load file or assembly 'Telerik.Web.UI' or one of its dependencies. The system cannot find the file specified under Framework 4

[Steve]

I tried the solution suggested and didn't work.
I think my problem is related to Framework 4.0, 
Web.config content
--------------------------
    <compilation debug="true" targetFramework="4.0">
      <assemblies>

        <add assembly="Telerik.Web.UI, Version=2008.3.1314.35, Culture=neutral, PublicKeyToken=121FAE78165BA3D4" />
        <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.Drawing.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
      </assemblies>
    </compilation>
 
    <httpHandlers>
      <add path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false" />
      <add path="Telerik.Web.UI.SpellCheckHandler.axd" verb="*" type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI, Version=2008.3.1314.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false" />
      <add path="Telerik.RadUploadProgressHandler.ashx" verb="*" type="Telerik.Web.UI.RadUploadProgressHandler, Telerik.Web.UI" />
 </httpHandlers>

Bold line is highlighted in red when error occurs, I had copied file Telerik.Web.UI.dll to bin.

Thanks in advance.

Steve
 

[Shinu]

Hello Steve,


Could you please check whether you have references to the previous version dll in your GAC?

Also checkout the following links, which might help in this.
General Troubleshooting
Error: Could not load file or assembly



-Shinu.

[Steve]

Dear Shinu,

Would you show me how to check if  I have references to the previous version dll in your GAC?
By the way, I am using IIS 7.5 on Windows 7, Asp.Net v4.0 classic.

Thanks

Steve