新手求助Can not load the scene

Creator 2.x
#1 

gameOver: function(player){
    if(player==0){
        cc.director.loadScene('WinScene');
    }
    if(player==1){
        cc.director.loadScene('LoseScene');
    }
},

那个WinScene可以跳转，但是LoseScene会报错
loadScene: Can not load the scene ‘LoseScene’ because it was not in the build settings before playing.
想问问怎么修改