SCRIPT5009: 'Sys' is undefined

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I have created a

C#

<asp:ScriptManager ID="ScriptManager1" runat="server" >

    </asp:ScriptManager>

When starting the website when using Internet Explorer i get his error,
SCRIPT5009: 'Sys' is undefined
But when using firefox i dont get any error?
How could i solve this?

Posted 4-Nov-14 2:23am

Kurac1

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DamithSL 4-Nov-14 8:40am

have you tried these solutions http://stackoverflow.com/questions/75322/sys-is-undefined[^]

Kornfeld Eliyahu Peter 4-Nov-14 8:42am

To be sure the error is there also in FF, but it does not display. FF and Chrome fail with grace in most cases...

2 solutions

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Mathew Soji · Answer 1 · 2014-11-04T02:57:00

Solution 2

please refer these links.

http://blogs.msdn.com/b/zainnab/archive/2007/04/09/ajax-fun-with-the-dreaded-sys-is-undefined-error.aspx[^]

http://encosia.com/updated-your-webconfig-but-sys-is-still-undefined/[^]

Posted 4-Nov-14 2:57am

Mathew Soji

Comments

Kurac1 4-Nov-14 9:54am

alright but i only have this ones in the map
ASP.NET MVC 4
ASP.NET Web Pages
ASP.NEt Web stack 5

Kurac1 4-Nov-14 9:55am

I have already done the second link dont work..
same error

Kurac1 · Answer 2 · 2014-11-04T02:48:00

Solution 1

Hi yes still have this problem when adding the code
Sys.WebForms.PageRequestManager._initialize('ScriptManager1', 'form1', ['tUpdatePanel1','UpdatePanel1'], ['Buttonsok','Buttonsok'], [], 90, '');

Posted 4-Nov-14 2:48am

Kurac1