Vue常见问题及处理

栏目: 编程语言 · 发布时间: 6年前

内容简介:解决方案:在最外边 包上一个容器(不允许直接返回多个元素)vue.js:435 [Vue warn]: Unknown custom element: <my-footer> - did you register the component correctly? For recursive components, make sure to provide the "name" option.原因:你把局部组件当成全局组件去使用了
  1. vue.js 2.0要求每个template只能有一个根元素。可以在最外层包一个div来解决这个问题。

vue.js:435 [Vue warn]: Error compiling template:

<h2>这是页头</h2>
        <button>登录</button>

Component template should contain exactly one root element. If you are using v-if on multiple elements, use v-else-if to chain them

instead.

解决方案:在最外边 包上一个容器(不允许直接返回多个元素)

vue.js:435 [Vue warn]: Unknown custom element: <my-footer> - did you register the component correctly? For recursive components, make sure to provide the "name" option.

原因:你把局部组件当成全局组件去使用了

解决方案:

正确的注册组件

3、 The "data" option should be a function that returns a per-instance value in component definitions.

原因:在组件中去初始化数据 不允许给data直接赋值一个对象

解决方案: Vue.component('',{

data:function(){
        return {}
       }
    })

4、Uncaught TypeError: Cannot read property 'push' of undefined

原因:push前面的那个变量,其实undefined

解决方案:

this 通过箭头函数来解决问题

5、ERROR in ./src/assets/img/favicon.ico

Module parse failed: C:xampphtdocsframeworkvueprojecttplssrcassetsimgfavicon.ico Unexpected character '' (1:0)

You may need an appropriate loader to handle this file type.

(Source code omitted for this binary file)

解决方案:找到build/webpack.base.conf.js

在41行加上 |ico

6、No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin ' http://localhost :8080' is therefore not allowed access.

跨域问题


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