AJAX :: System.Web.Extensions Conflict?

Jun 4, 2010

I downloaded and installed the AjaxControlToolkit.Binary.NET35.zip.I added Accordion, and add Accordion panels. Building the web site always fails. There are several error messages, like, Type 'AjaxControlToolkit.Accordion' does not have a public property named 'AccordionPane'. I checked the web.config file there are two different versions of System.Web.Extensions and System.Web.Extensions.Design.One is version 3.5 and another is 1.0 See the copy followed,

<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Web.Extensions.Design, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

[code]...

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i have installed ajax control kit successfully and all controls already came in toolbar tab named "Ajax Control toolkit"But when i try to design any page using with ajax control toolkit, follow error is coming:

Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.TypeLoadException: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

Source Error:[Code]....

Stack Trace: [Code]....

[TypeLoadException: Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.]
AjaxControlToolkit.ToolkitScriptManager.OnResolveScriptReference(ScriptReferenceEventArgs e) in [code]...

I am using VIsual Studio 2008 , framework 3.5 but i don't know why in error information version is showing 2.0

i install tool kit according 3.5 framework.also note, framework built-in ajax tags i can use fine and they work properly.

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Maybe it a little thing or something silly that someone else has experienced.

I have included some parts of code from my master page.

[Code]....

Web Config

[Code]....

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Ignore the warning and don't change anything. I am not sure what the application does to handle this.
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[URL]

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Server Error in '/IMGcup' Application.

Configuration Error
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Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The
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Source Error:

[Code]....

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[Code]....

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Source Error:

[Code]....

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[Code]....

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Description:
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[code]...

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Source Error: [Code]....

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[Code]....

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[Code]....

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[URL]Below are the codes for my web.config

[Code]....

Here's my code in the webform

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[Code]....

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