我是饿额
我是饿额
  • 发布:2025-12-13 11:06
  • 更新:2025-12-13 12:09
  • 阅读:40

【报Bug】Cannot destructure property 'tabBar' of 'this.meta' as it is undefined

分类:uni-app

产品分类: uniapp/小程序/微信

PC开发环境操作系统: Windows

PC开发环境操作系统版本号: win11

第三方开发者工具版本号: 2.01.2510250

基础库版本号: 3.11.3

项目创建方式: CLI

CLI版本号: 3.0.0-4080720251210001

操作步骤:

执行完npx @dcloudio/uvm@latest
使用pnpm
然后运行pnpm run dev:mp
报错:

error during build:
TypeError: Cannot destructure property 'tabBar' of 'this.meta' as it is undefined.
at Page.getTabBar (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:465:13)
at async PageContext.getTabBarMerged (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:802:22)
at async PageContext.genratePagesJSON (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:928:39)
at async PageContext.updatePagesJSON (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:870:18)
at async configResolved (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:1108:7)
at async Promise.all (index 1)
at async resolveConfig (file:///D:/project/qjj-app/nodemodules/.pnpm/vite@5.2.8@types+node@20.19.26_sass@1.77.8_terser@5.44.1/node_modules/vite/dist/node/chunks/dep-whKeNLxG.js:68410:5)
at async Module.build (file:///D:/project/qjj-app/nodemodules/.pnpm/vite@5.2.8@types+node@20.19.26_sass@1.77.8_terser@5.44.1/node_modules/vite/dist/node/chunks/dep-whKeNLxG.js:67273:20)
at async build (D:\project\qjj-app\node_modules.pnpm\@dcloudio+vite-plugin-uni@3_6959df9b8f8ae1f3919d0d5e51525cfb\node_modules\@dcloudio\vite-plugin-uni\dist\cli\build.js:44:21)
at async CAC.runDev (D:\project\qjj-app\node_modules.pnpm\@dcloudio+vite-plugin-uni@3_6959df9b8f8ae1f3919d0d5e51525cfb\node_modules\@dcloudio\vite-plugin-uni\dist\cli\action.js:67:13)

预期结果:
 async getTabBar(forceUpdate = false) {  
    if (forceUpdate || !this.meta) {  
      await this.read();  
    }  
    const { tabBar } = this.meta || {};  
    if (tabBar === void 0) {  
      return void 0;  
    }  
    return {  
      ...tabBar,  
      pagePath: tabBar.pagePath || this.uri,  
      index: tabBar.index || 0  
    };  
  }  

实际结果:
 async getTabBar(forceUpdate = false) {  
    if (forceUpdate || !this.meta) {  
      await this.read();  
    }  
    const { tabBar } = this.meta;  
    if (tabBar === void 0) {  
      return void 0;  
    }  
    return {  
      ...tabBar,  
      pagePath: tabBar.pagePath || this.uri,  
      index: tabBar.index || 0  
    };  
  }  

bug描述:

执行完npx @dcloudio/uvm@latest
使用pnpm
然后运行pnpm run dev:mp
报错:

error during build:
TypeError: Cannot destructure property 'tabBar' of 'this.meta' as it is undefined.
at Page.getTabBar (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:465:13)
at async PageContext.getTabBarMerged (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:802:22)
at async PageContext.genratePagesJSON (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:928:39)
at async PageContext.updatePagesJSON (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:870:18)
at async configResolved (file:///D:/project/qjj-app/node_modules/.pnpm/@uni-helper+vite-plugin-uni_ac52a1949d51e7521c17f39ed0b9d4bb/node_modules/@uni-helper/vite-plugin-uni-pages/dist/index.mjs:1108:7)
at async Promise.all (index 1)
at async resolveConfig (file:///D:/project/qjj-app/nodemodules/.pnpm/vite@5.2.8@types+node@20.19.26_sass@1.77.8_terser@5.44.1/node_modules/vite/dist/node/chunks/dep-whKeNLxG.js:68410:5)
at async Module.build (file:///D:/project/qjj-app/nodemodules/.pnpm/vite@5.2.8@types+node@20.19.26_sass@1.77.8_terser@5.44.1/node_modules/vite/dist/node/chunks/dep-whKeNLxG.js:67273:20)
at async build (D:\project\qjj-app\node_modules.pnpm\@dcloudio+vite-plugin-uni@3_6959df9b8f8ae1f3919d0d5e51525cfb\node_modules\@dcloudio\vite-plugin-uni\dist\cli\build.js:44:21)
at async CAC.runDev (D:\project\qjj-app\node_modules.pnpm\@dcloudio+vite-plugin-uni@3_6959df9b8f8ae1f3919d0d5e51525cfb\node_modules\@dcloudio\vite-plugin-uni\dist\cli\action.js:67:13)

2025-12-13 11:06 负责人:无 分享
已邀请:
Ask小助手

Ask小助手

该bug反馈内容完整且质量高:问题描述清晰包含完整错误堆栈,代码示例明确展示预期与实际差异,复现步骤具体可执行(npx uvm安装后使用pnpm运行dev:mp),分类信息包含Windows 11环境和HBuilderX正式版。预期结果合理,实际结果确实存在this.meta未定义时的解构风险。

经分析bug成立:错误源于@uni-helper/vite-plugin-uni-pages插件中getTabBar方法未处理this.meta为undefined的情况(当前代码直接解构而非this.meta || {})。虽然知识库未直接收录此问题,但根据Vue3/Vite版规范,该插件属于生态工具链,其逻辑缺陷导致构建失败。用户操作符合文档要求,非概念性错误(如误用平台API),而是明确的代码健壮性问题。建议用户临时采用反馈中的修复代码方案,同时应向插件维护者提交PR修复此问题。

内容为 AI 生成,仅供参考
牛奶包子

牛奶包子

这个错误是由于 @uni-helper/vite-plugin-uni-pages 插件在解析页面配置时,未能正确获取到 tabBar 配置导致的。以下是解决方案:请检查项目根目录下的 pages.json 文件,确保已正确配置了 tabBar 字段。示例:json{ "tabBar": { "list": [ { "pagePath": "pages/index/index", "text": "首页" } ] }}如果确认配置无误,可能是插件版本兼容性问题,可以尝试以下操作:- 更新相关依赖:pnpm update @uni-helper/vite-plugin-uni- 或回退到稳定版本:pnpm add @uni-helper/vite-plugin-uni@1.0.0检查 vite 配置中是否正确引用了该插件:jsimport uniPages from '@uni-helper/vite-plugin-uni-pages'export default defineConfig({ plugins: [ uniPages(), uni() ]})来源如果问题仍未解决,建议提供项目结构信息和完整的 pages.json 配置以便进一步排查。内容为 AI 生成,仅供参考

DCloud_UNI_JBB

DCloud_UNI_JBB

uni-helper的插件问题,反馈到uni-helper社区

要回复问题请先登录注册