Uncaught ReferenceError: jQuery is not defined [duplicate]

Answer 1

you need to put it after wp_head(); Because that loads your jQuery and you need to load jQuery first and then your js

Answer 2

For one, you don't seem to be including jQuery itself in the header but only a bunch of plugins. As for the '<' error, it's impossible to tell without seeing the generated HTML.

Answer 3

jQuery needs to be the first script you import. The first script on your page

<script type="text/javascript" src="/test/wp-content/themes/child/script/jquery.jcarousel.min.js"></script>

appears to be a jQuery plugin, which is likely generating an error since jQuery hasn't been loaded on the page yet.

Answer 4

In my case, the error occurred because I was using the wrong version of jquery.

<script src="http://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>

I changed it to:

<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>

Answer 5

set this jquery min js

script src="http://code.jquery.com/jquery-1.10.1.min.js"

in wp-admin/admin-header.php