validator $.validator.methods[method] is undefined

Question

I have this validator form code I have inherited which I am getting this error:

$.validator.methods[method] is undefined 

and under that it

Answer 1

You are getting this error because you're calling a non-existent rule...

rules: {
    //other rules,
    interest2: {
        notEqualTo: "#interest"
    },
}

notEqualTo is not a valid rule included within this plugin. You must remove it or create a new rule called notEqualTo by using the plugin's built-in addMethod() method. Something like this...

jQuery.validator.addMethod('notEqualTo', function(value, element, param) {
    return value != jQuery(param).val();
}, 'Must not be equal to {0}.' );