将jquery-ui库添加到加载的脚本时，出现“初始化前无法在工具提示上调用方法”错误。没有它，一切工作正常。
这可能是什么原因？
错误：
Uncaught Error: cannot call methods on tooltip prior to initialization; attempted to call method 'show'
n.extend.error @ jquery.min.js:2
(anonymous function) @ jquery-ui.min.js:6
n.extend.each @ jquery.min.js:2
n.fn.n.each @ jquery.min.js:2
e.fn.(anonymous function) @ jquery-ui.min.js:6
(anonymous function) @ scrolltop.js:20
i @ jquery.min.js:2
j.fireWith @ jquery.min.js:2
n.extend.ready @ jquery.min.js:2J @ jquery.min.js:2
我在页面底部加载的脚本是：
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script src="{{ asset('assets/js/bootstrap.min.js') }}" type="text/javascript"></script>
<script src="{{ asset('assets/vendors/livicons/minified/raphael-min.js') }}"></script>
<script src="{{ asset('assets/vendors/livicons/minified/livicons-1.4.min.js') }}"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script> //If I remove this everything works fine.
<script type="text/javascript" src="{{ asset('assets/js/frontend/scrolltop.js') }}"></script>//If …