Unable to get property ‘use‘ of undefined of null reference

时间 2021-01-03

标签 vue java web 栏目 Java 繁體版

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最近在创建vue项目时，安装axios时前端会报：Unable to get property ‘use’ of undefined of null reference这个错误。 use关键字不可用可能就是创建vue时用的版本不对。然后又重新创建了一个这是应该选择默认的2.x，以前时选的3.x所以才报错。然后就成功了。

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1. Cannot read property 'get' of undefined
2. mysql：Invalid use of null value
3. Cannot read property 'get' of undefined in Vue
4. Cannot read property 'sassOptions' of undefined
5. Null value was assigned to a property of primitive
6. Cannot read property 'slice' of undefined
7. TypeError: Cannot read property '$createElement' of undefined
8. Cannot read property 'newLine' of undefined
9. EasyUI:Cannot read property 'width' of null
10. undefined reference to `yywrap'

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