使用函数式组件，提示错误：“Error in render: "TypeError: Cannot read property '_c' of undefined"”

CaptainLiao commented 5 years ago

问题描述 在 uniapp 中，使用函数式组件，会报错：Error in render: "TypeError: Cannot read property '_c' of undefined"。

复现步骤 声明一个简单的函数式组件，如下

<template functional>
<div>sss</div>
</template>

预期结果 组件正确被渲染出来。

实际结果

系统信息:

发行平台: 微信小程序
操作系统: win 10 System: OS: Windows 10 CPU: (4) x64 Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz Binaries: Node: 8.11.2 - E:\node-v8.11.2-win-x64\node.EXE Yarn: 1.6.0 - ~\AppData\Roaming\npm\yarn.CMD npm: 5.6.0 - E:\node-v8.11.2-win-x64\npm.CMD Browsers: Edge: 42.17134.1.0 npmPackages: @dcloudio/uni-app-plus: => 0.0.243 @dcloudio/uni-app-plus-nvue: 0.0.1 @dcloudio/uni-app-plus-nvue-v8: 0.0.1 @dcloudio/uni-cli-shared: => 0.2.962 @dcloudio/uni-h5: => 0.5.10 @dcloudio/uni-mp-alipay: => 0.0.817 @dcloudio/uni-mp-baidu: => 0.0.844 @dcloudio/uni-mp-toutiao: => 0.0.341 @dcloudio/uni-mp-weixin: => 0.0.966 @dcloudio/uni-template-compiler: => 0.9.179 @dcloudio/vue-cli-plugin-hbuilderx: latest => 1.0.101 @dcloudio/vue-cli-plugin-uni: latest => 0.9.479 @dcloudio/webpack-uni-mp-loader: => 0.3.630 @dcloudio/webpack-uni-nvue-loader: 0.0.1 @dcloudio/webpack-uni-pages-loader: => 0.2.845 @vue/babel-helper-vue-jsx-merge-props: 1.0.0 @vue/babel-plugin-transform-vue-jsx: 1.0.0 @vue/babel-preset-app: 3.8.0 @vue/babel-preset-jsx: 1.0.0 @vue/babel-sugar-functional-vue: 1.0.0 @vue/babel-sugar-inject-h: 1.0.0 @vue/babel-sugar-v-model: 1.0.0 @vue/babel-sugar-v-on: 1.0.0 @vue/cli-overlay: 3.8.0 @vue/cli-plugin-babel: 3.5.1 => 3.5.1 @vue/cli-plugin-eslint: ^3.8.0 => 3.8.0 @vue/cli-service: ^3.6.0 => 3.8.3 @vue/cli-shared-utils: 3.8.0 @vue/component-compiler-utils: 2.6.0 @vue/preload-webpack-plugin: 1.1.0 @vue/web-component-wrapper: 1.2.0 mpvue-page-factory: 1.0.1 mpvue-template-compiler: 1.0.13 mpvue-wxparse: 0.6.5 uni-h5-vue: 2.6.10 uni-mp-vue: 2.6.10 vue: ^2.6.10 => 2.6.10 vue-hot-reload-api: 2.3.3 vue-loader: 15.7.0 vue-router: 3.0.1 vue-style-loader: 3.1.2 (3.1.2) vue-template-compiler: ^2.5.21 => 2.6.10 vue-template-es2015-compiler: 1.9.1 vuex: ^3.0.1 => 3.1.1 weex-vue-loader: ^0.7.0 => 0.7.0

fxy060608 commented 5 years ago

暂不支持函数式组件

nyrf commented 3 years ago

@fxy060608 请问下函数式组件vue3后续还有计划支持么？很多时候模板还是不够灵活

fxy060608 commented 3 years ago

@fxy060608 请问下函数式组件vue3后续还有计划支持么？很多时候模板还是不够灵活

你说的是手写render函数吧，暂无计划支持

nyrf commented 3 years ago

@fxy060608 请问下函数式组件vue3后续还有计划支持么？很多时候模板还是不够灵活

你说的是手写render函数吧，暂无计划支持

是的，了解。麻烦看下vue3下ref在onMounted时得不到值的问题谢谢。https://github.com/dcloudio/uni-app/issues/2461

dcloudio / uni-app

使用函数式组件，提示错误：“Error in render: "TypeError: Cannot read property '_c' of undefined"” #575