解析 - 无法将AddUnique Op与之前的Op合并

Question

我正在使用Parse Cloud Code在Parse数据库中创建一些对象。当我创建一个对象时，我首先添加一些预设值，然后想要存储数组的所有唯一元素：

    if (bizStrategy != null) {
      person.add("biz", bizStrategy);
    }
    if (legal != null) {
      person.add("biz", legal);
    }
    if (financialConsulting != null) {
      person.add("biz", financialConsulting);
    }
    if (gettingStarted != null) {
      person.add("biz", gettingStarted);
    }
    if (hr != null) {
      person.add("biz", hr);
    }
    if (businessDev != null) {
      person.add("biz", businessDev);
    }
    if (careerAdvice != null) {
      person.add("biz", careerAdvice);
    }
    if (internationalDev != null) {
      person.add("biz", internationalDev);
    }
    if (otherBiz != null) {
      var bizArray = separateTags(otherBiz);
      for(var i=0, len=bizArray.length; i < len; i++){
        var skill = bizArray[i];
        person.addUnique("biz", skill);
      }
    }

但是，我收到以下错误： “无法将AddUnique Op与之前的Op合并

我尝试了查找，但它返回了一个google结果：

我希望你能帮忙！

编辑：记录

  E2015-11-17T16:18:00.808Z]v246 Ran job standardisePeople with:
    Input: {}
    Result: Error: Cannot merge AddUnique Op with the previous Op
      at t.a.value (Parse.js:14:21539)
      at n.value (Parse.js:14:6067)
      at n.value (Parse.js:14:6551)
      at main.js:331:20
      at e.<anonymous> (Parse.js:15:1692)
      at e.s (Parse.js:14:27156)
      at Parse.js:14:27542
      at i (Parse.js:14:27497)
      at e.n.value (Parse.js:14:27527)
      at Parse.js:15:1669