Javascript - Error: 102 bad type for inQuery Parse.com -

when run code in cloud bad inner query error when should matching results. objectid's of objects have match?

here code:

parse.cloud.define("itemsinfo", function(request, response) {   var testitems = parse.object.extend("testitem"); var userfavorites = parse.object.extend("userfavourite");  var testitemsquery = new parse.query(testitems); var userfavoritesquery = new parse.query(userfavorites); var installationquery = new parse.query(parse.installation);  testitemsquery.exists('item'); testitemsquery.equalto('school', 'union college (ny)');  userfavoritesquery.include('item'); //this makes sure pull of favorite item data instead of pointer object userfavoritesquery.matchesquery("item", testitemsquery); //this run second query against testitems //userfavoritesquery.limit(1000); //limit results 1000 //userfavoritesquery.ascending('userid'); //group user id's in array  userfavoritesquery.find({     success: function(results) {         console.log(results);        },     error: function(error) {             alert("error: " + error.code + " " + error.message);      }  }); 

would try this? tell query compare item object rather objectid. if doesn't work, let me know.

userfavoritesquery.matcheskeyinquery('item', 'objectid', testitemsquery);