我开始是想获取picker的值，代码是这样的

data: {

array: ['请选择', '美国', '中国', '巴西', '日本'],

index: 0,

multiArray: [['早餐前', '中餐前', '晚餐前'], ['1', '2', '3', '4', '5'], ['盖']],

multiIndex: [0, 0, 0]

<picker mode="multiSelector" bindchange="bindMultiPickerChange" bindcolumnchange="bindMultiPickerColumnChange" value="{{multiIndex}}" range='{{multiArray}}'>

<view class="picker">

<image class="addUserImg" src='../../../../image/icon/jia1.jpg'>image>

view>

picker>

我先尝试了用

multiSelector: function (e) {}，然后它报下面这个问题

WAService.js:9 Do not have bindMultiPickerChange handler in current page: pages/scheme/addscheme/addproduct/addproduct. Please make sure that bindMultiPickerChange handler has been defined in pages/scheme/addscheme/addproduct/addproduct, or pages/scheme/addscheme/addproduct/addproduct has been added into app.json，我又换了一下其他的，

bindMultiPickerChange: function (e) {}，又报了个类似的问题，我不知道是我用法不对，还是我没有配置什么东西，哪位大神能解决一下