jQuery 1.6.1 , IE9 and SCRIPT5009: '$' is undefined

Question

There is

SCRIPT5009: \'$\' is undefined

Answer 1

FOR BEGINNERS:

add this code to your file:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js">
</script>

It'll grab the jQuery file from google cdn (according to http://www.w3schools.com/jquery/jquery_intro.asp) I was having this problem

Answer 2

Do you have another script using jQuery before jQuery is referenced?

Answer 3

This issue is because there is no reference in the page for jquery...Pleaes ensure that the below js reference or above jquery-1.5.1.min.js is added as reference

<script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>