How to validate select field??

$('#fomulari').validate( { rules: { fieldSelect: { required:true } fieldSelect2:
function(error, element) { // Not execute never console.log("fieldSelect2", error, element); return true; } } });

this does not work.

and

jQuery.validator.setDefaults({
    debug: true,
    success: "valid"
});

jquery.validate.js:655 ​ has no name assigned