Error message: ASP.NET Ajax client-side framework failed to load

ceboc · August 29th, 2010, 06:04 AM

Hi

I have opgraded a webproject from Microsoft Visual Web Designer 2008 Express to Microsoft Visual Web Designer 2010 Express.

I get error message: "ASP.NET Ajax client-side framework failed to load", when I run following simple page:

--------------------------------------------------------------------------

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test3.aspx.vb" Inherits="test3" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">

<a href="test.zip" >Download test file</a>

</form>
</body>
</html>

--------------------------------------------------------------------------

In my web.config file is written:



My system.webServer section is empty and I use Internet Information Services 7.0.

Has this anything to do with the error message ? How can I solve the problem?

Is ASP.NET AJAX framework automatic installed when I install Microsoft Visual Web Designer 2010 Express ?

Best regards,
Bo

Imar · August 29th, 2010, 08:33 AM

Quote:

Is ASP.NET AJAX framework automatic installed when I install Microsoft Visual Web Designer 2010 Express ?

Yes it is.

Maybe there's old stuff in your web.config file? Can you post its code?

Imar

ceboc · August 29th, 2010, 02:03 PM

Hi

Here is the code from web.config:

Code:

<?xml version="1.0"?>
<!-- 
    Note: As an alternative to hand editing this file you can use the 
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in 
    machine.config.comments usually located in 
    \Windows\Microsoft.Net\Framework\v2.x\Config 
-->
<configuration>
	<appSettings/>
	<connectionStrings>
  <add name="MemoFunDBConnectionString1" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\MemoFunDB.mdf;Integrated Security=True;User Instance=True"
   providerName="System.Data.SqlClient" />
  <add name="ASPNETDBConnectionString" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\ASPNETDB.MDF;Integrated Security=True;User Instance=True"
   providerName="System.Data.SqlClient" />
 </connectionStrings>
	<system.web>
		<!-- 
            Set compilation debug="true" to insert debugging 
            symbols into the compiled page. Because this 
            affects performance, set this value to true only 
            during development.

            Visual Basic options:
            Set strict="true" to disallow all data type conversions 
            where data loss can occur. 
            Set explicit="true" to force declaration of all variables.
        -->
		<compilation debug="true" strict="false" explicit="true" targetFramework="4.0">
			<assemblies>
				<add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/></assemblies></compilation>
		<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID">
			<namespaces>
				<clear/>
				<add namespace="System"/>
				<add namespace="System.Collections"/>
				<add namespace="System.Collections.Generic"/>
				<add namespace="System.Collections.Specialized"/>
				<add namespace="System.Configuration"/>
				<add namespace="System.Text"/>
				<add namespace="System.Text.RegularExpressions"/>
				<add namespace="System.Linq"/>
				<add namespace="System.Xml.Linq"/>
				<add namespace="System.Web"/>
				<add namespace="System.Web.Caching"/>
				<add namespace="System.Web.SessionState"/>
				<add namespace="System.Web.Security"/>
				<add namespace="System.Web.Profile"/>
				<add namespace="System.Web.UI"/>
				<add namespace="System.Web.UI.WebControls"/>
				<add namespace="System.Web.UI.WebControls.WebParts"/>
				<add namespace="System.Web.UI.HtmlControls"/>
			</namespaces>
		</pages>
		<!--
            The <authentication> section enables configuration 
            of the security authentication mode used by 
            ASP.NET to identify an incoming user. 
        -->
		<membership>
			<providers>
				<clear/>
				<add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="LocalSqlServer" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" applicationName="/" requiresUniqueEmail="false" passwordFormat="Clear" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression=""/>
			</providers>
		</membership>
		<authentication mode="Forms"/>
		<!--
            The <customErrors> section enables configuration 
            of what to do if/when an unhandled error occurs 
            during the execution of a request. Specifically, 
            it enables developers to configure html error pages 
            to be displayed in place of a error stack trace.

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>
        -->
	</system.web>
  <system.webServer>
  
  </system.webServer>

  <!-- 
        The system.webServer section is required for running ASP.NET AJAX under Internet
        Information Services 7.0.  It is not necessary for previous version of IIS.
    -->
	<system.net>
		<mailSettings>
			<smtp deliveryMethod="Network" from="MemoFun &lt;[email protected]&gt;">
				<network host="" userName="" password=""/>
			</smtp>
		</mailSettings>
	</system.net>
</configuration>

Best regards,

Bo

Imar · August 29th, 2010, 02:27 PM

That looks fine to me; it should work with these config settings (it works for me).

Could it be other code or references in your project?

Imar

ceboc · August 30th, 2010, 04:31 AM

I have just installed Visual Web Developer 2010 Express on a new computer. Converted my web project from Microsoft Visual Web Developer 2008 to the 2010 Edition.
I have not changed any settings ect. in VWD 2010.

If I create a new project in VWD 2010 and insert:

<a href="test.zip" >Download test file</a>

in a new webpage, I get the same error, when I view it in the browser.

Best Regards,

Bo

Imar · August 30th, 2010, 08:13 AM

What are the settings for the application pool used by IIS? Maybe it still runs under .NET 2?

Imar

ceboc · August 30th, 2010, 10:04 AM

How do I find the settings for the application pool used by IIS?

Bo

Imar · August 30th, 2010, 10:33 AM

If you open IIS, there's a node called Application Pools (at the same level as the Sites node). There you can see your application pool and its configuration.

You can see which pool is used by your site on your site's Advanced Settings dialog.

Cheers,

Imar

ceboc · August 31st, 2010, 04:23 AM

The settings for the application pool in IIS Manager is:

ASP.NET v4.0 Status:Startet Version: 4.0 Programs: 0
ASP.NET v4.0 classic Status:Startet Version: 4.0 Programs: 0
Classic.NET AppPool Status:Startet Version: 4.0 Programs: 0
Default AppPool Status:Startet Version: 4.0 Programs: 1

Best Regards,

Bo

Imar · August 31st, 2010, 04:34 AM

And does your web site use the Default AppPool?

Not sure what's going on here. You could try reregistering ASP.NET with IIS using aspnet_regiis -i from the .NET Framework folder.

Other than that, I don't know what's going on. if a brand new web site results in the exact same order, something is broken somewhere....

Cheers,

Imar