uni-app cli创建项目运行小程序报错 TypeError: Cannot read property 'config' of undefined

uni-app cli创建项目运行小程序报错 TypeError: Cannot read property ‘config’ of undefined

开发环境 版本号 项目创建方式
Mac 11.4 CLI

操作步骤：

根据文档 vue create -p dcloudio/uni-preset-vue my-project 生成项目，一个字都未改动，直接运行 yarn dev:mp-weixin,然后用小程序开发工具打开dist/dev/mp-weixin


### 预期结果：

正常运行

实际结果：

app.js错误:  
TypeError: Cannot read property 'config' of undefined  
    at Object.<anonymous> (main.js? [sm]:4)  
    at Object.<anonymous> (main.js? [sm]:11)  
    at __webpack_require__ (bootstrap:81)  
    at checkDeferredModules (bootstrap:47)  
    at Array.webpackJsonpCallback [as push] (bootstrap:34)  
    at main.js:4  
    at require (VM57 WAService.js:2)  
    at r (VM57 WAService.js:2)  
    at app.js? [sm]:4  
    at require (VM57 WAService.js:2)(env: macOS,mp,1.05.2107221; lib: 2.18.1)

bug描述：

根据文档 vue create -p dcloudio/uni-preset-vue my-project 生成项目，一个字都未改动，直接运行 yarn dev:mp-weixin,然后用小程序开发工具打开dist/dev/mp-weixin,控制台提示：

app.js错误:  
TypeError: Cannot read property 'config' of undefined  
    at Object.<anonymous> (main.js? [sm]:4)  
    at Object.<anonymous> (main.js? [sm]:11)  
    at __webpack_require__ (bootstrap:81)  
    at checkDeferredModules (bootstrap:47)  
    at Array.webpackJsonpCallback [as push] (bootstrap:34)  
    at main.js:4  
    at require (VM57 WAService.js:2)  
    at r (VM57 WAService.js:2)  
    at app.js? [sm]:4  
    at require (VM57 WAService.js:2)(env: macOS,mp,1.05.2107221; lib: 2.18.1)

更多关于uni-app cli创建项目运行小程序报错 TypeError: Cannot read property 'config' of undefined的实战教程也可以访问 https://www.itying.com/category-93-b0.html

6 回复

请问解决了么 我也报了。。 是不是vue-cli版本问题

更多关于uni-app cli创建项目运行小程序报错 TypeError: Cannot read property 'config' of undefined的实战教程也可以访问 https://www.itying.com/category-93-b0.html


npm run info 打印一下依赖信息

请问解决了么 vue-cli4.5.9
npm run info 的信息
uni-app v3.2.12 uni-app cli v2.0.0-32920211029004
Environment Info:
System: OS: macOS 11.6.1 CPU: (16) x64 Intel® Core™ i9-9880H CPU @ 2.30GHz Binaries: Node: 15.5.0 - ~/.nvm/versions/node/v15.5.0/bin/node Yarn: Not Found npm: 7.6.3 - ~/.nvm/versions/node/v15.5.0/bin/npm Browsers: Chrome: 95.0.4638.69 Firefox: 94.0.1 Safari: 15.1
npmPackages: @dcloudio/types: => 2.5.13 @dcloudio/uni-app-plus: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-app-plus-nvue: 0.0.1 @dcloudio/uni-app-plus-nvue-v8: 0.0.1 @dcloudio/uni-automator: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-cli-i18n: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-cli-shared: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-h5: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-helper-json: => 1.0.13 @dcloudio/uni-i18n: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-migration: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-360: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-alipay: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-baidu: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-kuaishou: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-qq: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-toutiao: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-vue: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-mp-weixin: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-quickapp-native: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-quickapp-webview: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-stat: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/uni-template-compiler: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/vue-cli-plugin-hbuilderx: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/vue-cli-plugin-uni: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/vue-cli-plugin-uni-optimize: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/webpack-uni-mp-loader: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @dcloudio/webpack-uni-nvue-loader: 0.0.1 @dcloudio/webpack-uni-pages-loader: ^2.0.0-32920211029004 => 2.0.0-32920211029004 @hap-toolkit/dsl-vue: 0.6.13 @vue/babel-helper-vue-jsx-merge-props: 1.2.1 @vue/babel-helper-vue-transform-on: 1.0.2 @vue/babel-plugin-jsx: 1.1.1 @vue/babel-plugin-transform-vue-jsx: 1.2.1 @vue/babel-preset-app: 4.5.15 @vue/babel-preset-jsx: 1.2.4 @vue/babel-sugar-composition-api-inject-h: 1.2.1 @vue/babel-sugar-composition-api-render-instance: 1.2.4 @vue/babel-sugar-functional-vue: 1.2.2 @vue/babel-sugar-inject-h: 1.2.2 @vue/babel-sugar-v-model: 1.2.3 @vue/babel-sugar-v-on: 1.2.3 @vue/cli-overlay: 4.5.15 @vue/cli-plugin-babel: ~4.5.0 => 4.5.15 @vue/cli-plugin-router: 4.5.15 @vue/cli-plugin-vuex: 4.5.15 @vue/cli-service: ~4.5.0 => 4.5.15 @vue/cli-shared-utils: 4.5.15 @vue/component-compiler-utils: 3.3.0 (3.3.0) @vue/devtools-api: 6.0.0-beta.15 @vue/preload-webpack-plugin: 1.1.2 @vue/shared: ^3.0.0 => 3.2.21 @vue/web-component-wrapper: 1.3.0 mpvue-page-factory: 1.0.1 mpvue-template-compiler: 1.0.13 uni-h5-vue: 2.6.10 uni-mp-vue: 2.6.10 vue: ^2.6.11 => 2.6.14 vue-hot-reload-api: 2.3.4 vue-loader: 15.9.8 (16.8.3, 15.9.8) vue-router: 3.0.1 vue-style-loader: 4.1.3 (4.1.3) vue-template-compiler: ^2.6.11 => 2.6.14 (2.6.14) vue-template-es2015-compiler: 1.9.1 vue3: 1.0.0 vuex: ^3.2.0 => 3.6.2 (3.6.2) npmGlobalPackages: @vue/cli: Not Found

同样的问题

这错误我也遇到了，因为之前一直是没问题的，所有配置我都有记录，但是创建新的默认模板就是会报错，后来发现是默认模板中多了一些vue3的参数导致的
没错说的就是根目录中vue.config.js process.env.UNI_USING_VUE3 = true
process.env.UNI_USING_VUE3_OPTIONS_API = true 这两行
直接改为false还没用，需要删掉或者注释掉

这个错误通常是由于 [@dcloudio](/user/dcloudio)/uni-mp-weixin 包的版本问题导致的。错误信息表明在访问 config 属性时遇到了 undefined，这很可能是因为微信小程序平台的适配器没有正确初始化。

解决方案：

  1. 更新依赖版本： 检查 package.json 中 [@dcloudio](/user/dcloudio)/uni-mp-weixin 的版本。建议更新到最新稳定版：

    "[@dcloudio](/user/dcloudio)/uni-mp-weixin": "^2.0.0-31920210518001"

    然后执行：

    yarn install

  2. 清理缓存并重新构建： 删除 node_modules、dist 目录和 yarn.lock（或 package-lock.json）：

    rm -rf node_modules dist yarn.lock
yarn install
yarn dev:mp-weixin

  3. 检查HBuilderX CLI版本： 确保使用的是最新版 [@dcloudio](/user/dcloudio)/uni-cli-shared：

    yarn add [@dcloudio](/user/dcloudio)/uni-cli-shared[@latest](/user/latest)

  4. 临时解决方案： 如果问题仍然存在，可以尝试在 main.js 中添加延迟初始化：

    setTimeout(() => {
  const app = require('./App.vue').default
  app.mpType = 'app'
  const Vue = require('vue')
  new Vue(app).$mount()
}, 100)
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