Vue 开发常见报错及解决方案指南
目录
-
- 一、模板编译错误 (Template Compilation Errors)
- 二、运行时错误 (Runtime Errors)
- 三、状态管理相关错误 (Vuex)
- 四、 this上下文丢失、循环更新 (Infinite Update Loops)
- 调试技巧
- 总结
本文将梳理一些 Vue 开发者经常遇到的典型报错，分析其产生原因，并提供对应的解决方案，助你快速定位并解决问题。
[Vue warn]: key should be placed on the element.
[Vue warn]: Error compiling template: v-if/v-else-if/v-else without key used on element
[Vue warn]: Error compiling template: Component template should contain exactly one root element.
[Vue warn]: Error in render: “TypeError: Cannot read property ‘xxx’ of undefined/null”
[Vue warn]: Component emitted event “event-name” but it is neither declared in the emits option nor as an “onEvent-name” prop.
[Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop’s value. Prop being mutated: “propName”
[Vue