hello.
	cocos2dx 3.0 and IOS 64 bit Device, Simulator Error 
	when i try
	 
	  UserService *user = UserService::getInstance();
	    user->CreateUser(userName, password, emailId,this,callfuncND_selector(NetworkManagement::onUserRequestCompleted));
	 
	 
	Common.h
	 static cJSON* getJSONChild(string name,cJSON *json)
	    {
	        json = json->child;
	 
	 
	 
	need some build setting?