I think you might have written jquery.min.js and jquery.mobile-1.4.5.min.js after your .js file.

example:

<script type=”text/javascript” src=”js/yourfile.js”></script>
<script src=”js/jquery.mobile-1.4.5.min.js”></script>
<script src=”js/jquery.min.js”></script>

above code is worng code, you must write jquery.min.js and jquery.mobile-1.4.5.min.js before your .js file.

correct code is:

<script src=”js/jquery.mobile-1.4.5.min.js”></script>
<script src=”js/jquery.min.js”></script>
<script type=”text/javascript” src=”js/yourfile.js”></script>