Jquery DatePicker Error

$.validator.methods.date = function (value, element) 
{ 
return this.optional(element) ||
 Globalize.parseDate(value, "dd-MM-yyyy", "en"); 
}

jQuery.validator.methods.date = function (value, element)
 { if (value) { try {
 $.datepicker.parseDate('dd/mm/yy', value); } 
catch (ex) { return false; } } return true; };

Reference :

http://stackoverflow.com/questions/15706455/the-field-date-must
-be-a-date-in-mvc-in-chrome

$('#date').removeAttr("data-val-date");

Or

jQuery.validator.methods.date = function (value, element)
 { 
if (value)
 { try 
{  
 $.datepicker.parseDate('dd/mm/yy', value);
 } 
catch (ex) 
{ return false; } 
} 
return true; };