VS2010 (.NET4) telerik 2010.1 + AjaxToolbox: client-side framework failed to load

[Petter Forss]

Hi,
I have followed all posts to this and partly it is solved for me.

I added MicrosoftAjax.js and MicrosoftAjaxWebForms.js in /scripts folder and referred to them in Radaxajxmanager:

     <telerik:RadScriptManager ID="RadScriptManager1" Runat="server">
         <Scripts>
   <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
   <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
   <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
            <asp:ScriptReference Assembly="System.Web.Extensions" Name="MicrosoftAjax.js" Path="~/Scripts/MicrosoftAjax.js" />
            <asp:ScriptReference Assembly="System.Web.Extensions" Name="MicrosoftAjaxWebForms.js" Path="~/Scripts/MicrosoftAjaxWebForms.js" />
  </Scripts>
        </telerik:RadScriptManager>

This workis in RELEASE-mode but the problems is still there in DEBUG-mode!?

What is missing or differs between debug and release...?

Best regards, Petter

[Petter Forss]

Hi, Fyi
The AjaxToolkit is 4.0 and my web config as below :

<?xml version="1.0"?>
<configuration>
    <appSettings>
        <add key="Telerik.ScriptManager.TelerikCdn" value="Disabled"/>
        <add key="Telerik.StyleSheetManager.TelerikCdn" value="Disabled"/>
    </appSettings>


    <system.web>

    <roleManager enabled="true" defaultProvider="AvancitSqlRoleProvider">
      <providers>
        <add connectionStringName="ConnectionStringDebug" applicationName="krakan" name="AvancitSqlRoleProvider" type="System.Web.Security.SqlRoleProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
      </providers>
    </roleManager>


    <compilation debug="true" targetFramework="4.0">
            <codeSubDirectories>
                <add directoryName="CSharp"/>
            </codeSubDirectories>
            <assemblies>
                <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
                <add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
                <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/></assemblies></compilation>
        <pages>
            <controls>
                <add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI"/>
            </controls>
        </pages>
        <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"/>
        </httpHandlers>
        <httpModules>
            <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule"/>
            <add name="RadCompression" type="Telerik.Web.UI.RadCompression"/>
        </httpModules>
    </system.web>
    <system.webServer>
        <validation validateIntegratedModeConfiguration="false"/>
        <modules runAllManagedModulesForAllRequests="true">
            <remove name="RadUploadModule"/>
            <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule" preCondition="integratedMode"/>
            <remove name="RadCompression"/>
            <add name="RadCompression" type="Telerik.Web.UI.RadCompression" preCondition="integratedMode"/>
        </modules>
        <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" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" preCondition="integratedMode"/>
        </handlers>
    </system.webServer>
</configuration>

[Petter Forss]

The error can have many reasons (may exmaples out there...)

In debug mode the includescripts for Ajax looks like to be: MicrosoftAjax.debug.js; the error in scriptdebugger is:

<script src="Scripts/MicrosoftAjax.debug.js" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[
if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');
//]]>

I got the MicrosoftAjax.js and MicrosoftAjaxWebForms.js from another telerik-post ; How do I get the corresponding to try with?

I tried to copy and rename the original ones and I do NOT get the error anymore. This is OK fro me, I will leave this like this a while.

[Growls]

I am having the same trouble with this.
I upgraded to VS 2010, re-installed telerik 2010.1 so that I have a bin40 folder, downloaded AJAX toolkit 4.0 and referenced the DLL, and referenced telerik 4.0 from the bin40 folder. I then changed the project to use .net 4.0.
following these steps gets me the client side framework failed to load error.
I can not find the other post that explains why we need to use the MicrosoftAjax.js and MicrosoftAjaxWebForms.js files?
I searched and found these js files and referenced them in radajaxmanager.
After referencing them I get a different JS error:
a._events is undefined
http://localhost/mypage/Scripts/MicrosoftAjax.debug.js
Line 5
and then after that error:
Telerik is not defined
http://localhost/mypage/logon.aspx
Line 147

<EDIT>
NEVERMIND! i fixed it by using the upgrade wizard to get the latest version, then removed the js file references and now it works.