Could not load file or assembly 'AjaxControlToolkit version 4.1...

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.NET4.5

my web application was working fine but suddenly it start to showing the error "Could not load file or assembly 'AjaxControlToolkit version 4.1.blah blah'
what to do i am using vs 2012 frame work 4.5

Posted 2-Sep-13 7:41am

Muhamad Faizan Khan

Updated 2-Sep-13 20:51pm

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[no name] 2-Sep-13 13:42pm

Well the obvious thing to do would be go get the AjaxControlToolkit and install it.

Muhamad Faizan Khan 2-Sep-13 13:43pm

yes i have installed i mean add reference to ref

VishwaKL 3-Sep-13 2:53am

Check reference added or not, and make sure that ajax dll should be present in the bin folder.

abusalehrajib 7-Sep-13 0:38am

at first u check your all .dll reference.if Ajax control toll kit dll does not exists then add this .dll into your project And also make sure that Ajax .dll should be in the bin folder.

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thatraja · Answer 1 · 2013-09-10T02:56:00

Solution 1

This[^] could help you.

Posted 10-Sep-13 2:56am

thatraja

Kunal_Patel · Answer 2 · 2013-09-10T19:32:00

Open Your Vsual Studio 2012

type CTRL + Q

Write Package Manager Console

you have see your package manager console

type this PM > Install-Package AjaxControlToolkit

it will take 30 to 45 second

and then add this line client side

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="Ajax" %>

Happy Coding...:-)