'Sys is undefined ' error

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Website is working Ok on local but on server i am getting following errors.
* Sys is undefined
* ASP.NET Ajax client-side framework failed to load

i am using:-
Ajax Toolkit version:
Product version is 3.0.30512.1
Assembly version is 3.0.30512.20315

Visual Studio is Microsoft visual studio premium 2012
framwork version is 4.5.50709

Please help!!

Posted 5-May-14 19:47pm

_Dhull

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King Fisher · Answer 1 · 2014-05-05T19:56:00

Solution 1

Try this

http://balajiramesh.wordpress.com/2008/08/14/sys-is-undefined-aspnet-ajax-error/[^]

Posted 5-May-14 19:56pm

King Fisher

Comments

_Dhull 6-May-14 4:26am

Not working. Still have same issue.

Sanket Saxena · Answer 2 · 2014-05-05T19:56:00

Solution 2

This is your web.config issue:
Try Adding the following in the system.web tag

HTML

<httphandlers>
  <remove verb="*" path="*.asmx" />
  <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  <add verb="GET" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler" validate="false" />
</httphandlers>

OR follow the link:
sys-is-undefined

Hope it helps :)

Posted 5-May-14 19:56pm

Sanket Saxena

Updated 5-May-14 19:57pm

v2

Comments

_Dhull 6-May-14 2:45am

thanks Sanket,
but not working :(

Sanket Saxena 6-May-14 2:52am

could u plz try:

<scripting>
<scriptResourceHandler enableCompression="false" />
</scripting>

in <system.web.extensions> tag

_Dhull 6-May-14 2:56am

Still no luck. Not working

Sanket Saxena 6-May-14 3:10am

check the link may be it helps u.

http://stackoverflow.com/questions/11288796/asp-net-ajax-client-side-framework-failed-to-load-when-put-the-scriptmanager-on

DamithSL · Answer 3 · 2014-05-05T20:11:00

This may be due to incorrect web config. You may have manually download and include ajax toolkit to your project. But there is a easy way to install it. check Install the Ajax Control Toolkit from NuGet[^] blog post.
You can use Nuget package manager to install the toolkit and it will do the configuration changes to you.