jQuery validation plugin error: TypeError: validator is undefined

Question

Here is html code for the form:

Answer 1

Same happened here. For me it was a typo in my code:

$(document).ready(function(){
    //START of validate
$('#reply').validate({
    rules:{
        message:{
            required: true,
            },  
        },
    submitHandler: function(form) {
        var data = $("#reply").serialize();
        $.ajax({
            type:"POST",
            url:"ajax/scripts/msg_crt.php",
            data:data,
            success:function(data){
                alert("Loaded");
                }
            });
        }
    });
    //END of validate
  });

$(document).on('click','#send', function(){
    if($('#replay').valid()){// <--- Here is my selector typo
        $("#replay").submit(); // <--- Here is my selector typo
        }
        return false;
    });