为什么我会收到飞行/未提交的错误？

Question

所以，我的控制器中有一个createCharacter方法。它主要起作用，但是当我尝试在forEach中填充hasMany字段时，出现attempted to handle event 'loadedData'...错误。有人说数据是空中的。一个人说是未提交的（我试着做store.commit()。这就是当错误切换到飞行时）。

这是有问题的方法。其他任何东西都不应该编辑或写入或读取这些记录（我至少知道）：

createCharacter: function(){
  var character = App.Character.createRecord({
    isEditing: true,
    (...)
  });


    //Broken
    App.Skill.find().forEach(function(item, index){
        console.log(item.get('id'));
        var newSkill = character.get('skills').createRecord({
            rank: 0,
            skill: item
        });
        //newSkill.save();
    });

    /*//Works (but doesn't make all the records I need)
    character.get('skills').createRecord({
        rank: 0,
        skill: App.Skill.find(1)
    });
    */

    /*this part is because I can't figure out how to filter records from a hasMany property. Not entirely relevant to the aforementioned issue, but it has the same problem when it's uncommented.
            var skills = character.get('skills');
    var skillsList = App.Skill.find().getEach('id');
    $.each(skillsList, function(index, value){
        var rankID = skills.createRecord({
            rank: 0,
            skill: App.Skill.find(value),
        });
        switch(App.Skill.find(value).get('type')){
            case 1:
                character.get('generalSkills').addObject(rankID);
                break;
            case 2:
                character.get('combatSkills').addObject(rankID);
                break;  
            case 3:
                character.get('knowledgeSkills').addObject(rankID);
                break;
        }
    });*/
    character.save();
}

我做错了什么？