how to fix 'jQuery is not defined' error in jquery library?

Question

Rails fix: make sure <%= javascript_include_tag \"application\" %> is before any script loading so that jquery gets loaded first.

<

Answer 1

jQuery UI doesn't include the standard jQuery library by default. You'll need to add a <script> tag to include the standard jQuery library before including any plugins that use it.

Answer 2

your

<script type="text/javascript" src="jquery.js"></script> 

needs to be called before jquery ui < script > tags.

Should appear like this:

 <script type="text/javascript" src="jquery.js"></script> <-- put me here -->
 <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.9/jquery-ui.min.js"></script>
 <script src="http://bainternet-js-cdn.googlecode.com/svn/trunk/js/jQuery%20BlockUI%20Plugin/2.39/jquery.blockUI.js"></script>