javascript - Error: TypeError: Object has no method 'set' -

i using cloud code function ios app. calling cloud function code...

var moment = require("moment");  parse.cloud.define("registeractivity", function(request, response) {     var user = request.user;     user.set("lastactive", new date());     user.save().then(function (user) {         response.success();     }, function (error) {         console.log(error);         response.error(error);    }); }); 

and ios call this...

[pfcloud callfunction:@"registeractivity" withparameters:@{}]; 

why error?

error: typeerror: object  has no method 'set' 

you can't pass parse objects through cloud functions , expect them remain parse objects. better solution pass object id, create pointer user object, , set id it. update , save:

var moment = require("moment");  parse.cloud.define("registeractivity", function(request, response) {     var user = new parse.user()     user.id = request.userid;     user.set("lastactive", new date());     user.save().then(function (user) {         response.success();     }, function (error) {         console.log(error);         response.error(error);    }); });