Javascript Socket.emit-isn'；不工作，但socket.broadcast工作

由于某些原因，socket.emit未运行。我不知道错误在哪里。然而，广播是有效的

 io.sockets.on('connection', function (socket) { // on on client connection
        socket.on('login', function (uname, pword, email) { // on event login
            SetupPlayer(socket);
        });
    });

下面是调用的函数

var SetupPlayer= function(socket){
    GetPlayer(socket, function(PlayerObj){
        GetQuests(socket, function(QuestObj){
            socket.room = PlayerObj.RoomID;
            socket.emit('PlayerStructure', PlayerObj, QuestObj); // notify other clients about new player also passing players daya using set data structure
            socket.broadcast.in(socket.room).emit('AddPlayer', activeusers[socket.room][socket.id]); // same as above
        });
    });  
}

但是，

socket.emit

上不会发生任何事情，但是

socket.broadcast.in（socket.room）.emit会运行

这是客户端代码，但不要认为这是问题所在

socket.on('AddPlayer', function(playerstructure) {
    console.log(playerstructure);
});
socket.on('PlayerStructure', function(playerstructure) {
    console.log(playerstructure);
});

连接是否成功建立？是，建立了连接，广播发射正常，但socket.emit不正常