datetimepicker is not a function jquery

Question

I working with datetimepicker jquery ui, when code below html , datetimepicker is not displaying and when i inspect with firebug console it displayed an error ``

$("#example1").datetimepicker is not a function
[Break On This Error] $("#example1").datetimepicker(); 

and below is the code

<link href="css/styles.css" rel="stylesheet" type="text/css">
<link href="css/jquery-ui-1.8.16.custom.css" rel="stylesheet" type="text/css">

<style>
    .ui-timepicker-div .ui-widget-header { margin-bottom: 8px; }

    .ui-timepicker-div dl { text-align: left; }
    .ui-timepicker-div dl dt { height: 25px; margin-bottom: -25px; }
    .ui-timepicker-div dl dd { margin: 0 10px 10px 65px; }          
    .ui-timepicker-div td { font-size: 90%; }           
    .ui-tpicker-grid-label { background: none; border: none; margin: 0; padding: 0; }                   

</style>


<script type="text/javascript" src="scripts/jquery.js"></script>

<script type="text/javascript" src="scripts/jquery/ui/jquery.ui.datepicker.js"></script>
<script type="text/javascript" src="scripts/jquery/ui/jquery-ui-1.8.16.custom.min.js"></script>
<script type="text/javascript" src="scripts/jquery/ui/jquery-ui-timepicker-addon.js"></script>
<script type="text/javascript" src="scripts/jquery/ui/jquery-ui-sliderAccess.js"></script>

<script>
    $(document).ready(function(){
        $("#example1").datetimepicker();
    });
</script>

<script>

</script>

<input type="text" id="example1" class="hasDatePicker">

Answer 1

I had the same problem with bootstrap datetimepicker extension. Including moment.js before datetimepicker.js was the solution.