Microsoft JScript runtime error: 'jQuery' is undefined

Microsoft JScript runtime error: 'jQuery' is undefined

Hi,
Please find below code. My this code is giving error "Microsoft JScript runtime error: 'jQuery' is undefined" when I am debugging in Visual Studio.

<script src="Scripts/jquery-1.9.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
        jQuery(function ($) {
            // simple jQuery validation script
            $('#login').submit(function () {
                var valid = true;
                var errormsg = 'This field is required!';
                var errorcn = 'error';
                $('.' + errorcn, this).remove();
                $('.required', this).each(function () {
                    var parent = $(this).parent();
                    if ($(this).val() == '') {
                        var msg = $(this).attr('title');
                        msg = (msg != '') ? msg : errormsg;
                        $('<span class="' + errorcn + '">' + msg + '</span>')
                    .appendTo(parent)
                    .fadeIn('fast')
                    .click(function () { $(this).remove(); })
                        valid = false;
                    };
                });
                return valid;
            });
        });
</script>


Can anyone please help regarding this.

Thanks