Microsoft JScript runtime error: 'Sys' is undefined

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When I am running my project, a message box is coming and it shows "Microsoft JScript runtime error: 'Sys' is undefined"..... And also in dynamic source file shows

JavaScript

<script type=text/javascript>     
new Sys.WebForms.Menu({ element: NavigationMenu, disappearAfter: 500, orientation: vertical&, tabIndex: 0, disabled: false });

How will I escape from this ?

Posted 27-Nov-12 20:44pm

shinju atholi

Updated 27-Nov-12 21:09pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v3

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Nelek 28-Nov-12 3:11am

Have you checked if you have included all what you have to include? The error is quite explanatory, your program can not find the relationship when executing new Sys.WebForms...

Ankur^\m/ 28-Nov-12 3:50am

I have seen this error and Googling for the error has helped me.

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shinju atholi · Answer 1 · 2012-12-05T22:26:00

Solution 1

I got output.. I just change the default browser Internet Explorer to Chrome...

Posted 5-Dec-12 22:26pm

shinju atholi