Uncaught ReferenceError: $ is not defined

Uncaught ReferenceError: $ is not defined
<head>
    <meta charset="utf-8">
    <title>JS</title>
    <script type="text/javascript" src="./jquery-1.11.1.min.js"></script>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script src="./custom.js"></script>
</head>

自分のjsファイルを一番後ろへ。