[Vue warn]: Error in callback for watcher “fileList“: “TypeError: Cannot create property ‘uid‘ on st

港控/mmm° 2022-12-21 14:56 147阅读 0赞

# \[Vue warn\]: Error in callback for watcher "fileList": "TypeError: Cannot create property 'uid' on string #

#  #

![808ff24770e88cdf41004448c2bf0dfc.png][]

报错原因：  
TypeError: Cannot create property ‘xxx’ on string ‘xxxx’，此类错误是赋值的**类型错误**，  
如以上示例错误，在使用ElementUI的upload组件时，把字符串列表赋值给了  
**fileList**  
，而  
**fileList**  
需求的是对象的列表

###       示例错误代码： ###

pictureList = ['url1', 'url2'];
    this.fileList = pictureList;

###       示例正确代码： ###

pictureList = ['url1', 'url2'];
    this.fileList = pictureList.map(item => {
           return {
             name: item,
             url: item
           }
    });

Tips：【小程序云开发】中高级前端面试题库(1000+)（小程序中联系我哟）。  
\---------- 创作不易，感谢大家，请多多支持！

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjk4MTU2MA_size_16_color_FFFFFF_t_70][]

[808ff24770e88cdf41004448c2bf0dfc.png]: /images/20221120/f6d5957e639342bf9268aed6a62e3417.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjk4MTU2MA_size_16_color_FFFFFF_t_70]: /images/20221120/a46e6660091e4759966f9c441f7bf178.png

[Vue warn]: Error in callback for watcher “fileList“: “TypeError: Cannot create property ‘uid‘ on st

发表评论取消回复

还没有评论，来说两句吧...

相关阅读

相关 [Vue warn] Error in v-on handler “TypeError Cannot read properties of undefined (reading ‘value‘)

相关 Error in v-on handler: "TypeError: Cannot read property 'value' of undefined"

相关 [Vue warn]: Error in created hook: "TypeError: handler.call is not a function"

相关 Vue报错：TypeError: Cannot create property 'xxx' on string 'xxxx'

相关 [Vue warn]: Error in callback for watcher “fileList“: “TypeError: Cannot create property ‘uid‘ on st

相关 [Vue warn]: Error in render: “TypeError: Cannot read property ‘0‘ of undefined

相关 [Vue warn]: Error in mounted hook: “TypeError: Cannot read property ‘coordinateSystem‘ of undefined“

相关 [Vue warn]: Error in mounted hook: "TypeError: Cannot read property 'getAttribute' of null"

相关使用iview的Cascader 级联选择报错：Error in callback for watcher "data": "TypeError: Cannot read property

相关报 [Vue warn]: Error in render: "TypeError: Cannot read property 'goods_id' of null"