jQuery ReferenceError: $ is not defined Error handling method_jquery

At first glance, it is obvious that the script library is not referenced, but the script library confirms that it is referenced.

After that, put /statics/js/jquery- in Change 1.4.2.min.js to statics/js/jquery-1.4.2.min.js, and it works.

I also enabled absolute paths in IIS, but why doesn’t it work? Can't figure it out.

In addition, jquery-1.4.2.min.js can also run normally.

I don’t understand why this is happening. Fortunately, the problem has been solved, so forget it. If you have friends who have encountered this situation, you can let them know.