E:\A Prem World\Team_Work_Tasks\Anjali\Anjali_20160524\QuizApp_20160524_01_Anj>ionic serve -l
(node:4772) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.
There is an error in your gulpfile:
Error: Node Sass does not yet support your current environment: Windows 64-bit with false
For more information on which environments are supported please see:
TODO URL
    at Object.<anonymous> (E:\A Prem World\Team_Work_Tasks\Anjali\Anjali_20160524\QuizApp_20160524_01_Anj\node_modules\node-sass\lib\index.js:12:11)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:456:32)
    at tryModuleLoad (module.js:415:12)
    at Function.Module._load (module.js:407:3)
    at Module.require (module.js:466:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (E:\A Prem World\Team_Work_Tasks\Anjali\Anjali_20160524\QuizApp_20160524_01_Anj\node_modules\gulp-sass\index.js:187:21)
    at Module._compile (module.js:541:32)

当前回答

试试这个:

npm --depth 9999 update
npm rebuild node-sass

其他回答

下面的代码适合我。

npm uninstall node-sass --legacy-peer-deps
npm install node-sass --legacy-peer-deps

命令npm uninstall node-sass && npm install node-sass对我没有帮助,但在安装Python 2.7和Visual c++构建工具后,我删除了node_modules文件夹,从管理员打开CMD并运行npm install——msvs_version=2015。安装成功!

这条评论和这个链接也会有所帮助。

在我的情况下,问题是当我安装节点的最新版本,即;10.6.0. 同样的错误显示并参考@Quinn卸载该版本并安装8.11.3 LTS版本。现在工作很好:)

我尝试了这个,但它不适合我,并抛出错误:

npm --depth 9999 update 
npm rebuild node-sass

我已经安装了最新的Node.js(目前是11.11.0 Current),在遇到这个问题后,我只是做了以下工作:

降级到推荐版本(目前是10.15.3 LTS) 你可以从NodeJS中获取, 删除node_modules和 然后重新安装纱线:

     yarn install
     yarn start

在执行这些命令之后,一切都运行正常。

对于visual studio 2019,需要更改MSBuild路径

npm config set msvs_version 2017

npm config set msbuild_path "C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\MSBuild\Current\Bin\MSBuild.exe"

npm rebuild node-sass