日常报错、[Vue warn]: Invalid prop: type check failed for prop "multiple". Expected Boolean, got String.

旧城等待， 2022-04-08 10:38 587阅读 0赞

VUE报错如下：  
\[Vue warn\]: Invalid prop: type check failed for prop “multiple”. Expected Boolean, got String.  
意思是期望的数据类型是boolean 类型，却被我定义成了字符串、  
仔细看了下multiple这个组件属性、

log.js?4244:23 [HMR] Waiting for update signal from WDS...
    backend.js:10619  vue-devtools  Detected Vue v2.5.16 
    vue.esm.js?efeb:591 [Vue warn]: Invalid prop: type check failed for prop "multiple". Expected Boolean, got String.
    
    found in
    
    ---> <VCascader> at src\components\cascader\Cascader.vue
           <VForm>
             <MyBrandForm> at src\pages\item\MyBrandForm.vue
               <VCard>
                 <VDialog>
                   <VCard>
                     <MyBrand> at src\pages\item\MyBrand.vue
                       <VContent>
                         <VApp>
                           <App> at src\pages\Layout.vue
                             <App> at src\App.vue
                               <Root>

原来是这样的、确实被定义成了字符串、  
![1][]  
修改，把multiple后面的都去掉后、不再报错、其默认是true  
并且、v-model 绑定的数据和multiple 要求的数据类型要一致、  
v-model 绑定的是categories 是一个数组、那么 multiple 就是多个，其值是true ，刷新页面F12如下：  
![1][1 1]

[1]: /images/20220406/a82a3b8ca43c4f4e96857e5ba651060d.png
[1 1]: /images/20220406/1154afc469124eeeaeddb2edd76ddbe2.png

日常报错、[Vue warn]: Invalid prop: type check failed for prop "multiple". Expected Boolean, got String.

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