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

以上这些方法对我都没用。我完全删除,然后重新安装,它解决了这个问题。

删除现有的:

npm uninstall --save-dev node-sass 

然后重新安装:

npm install --save-dev node-sass

其他回答

需要将节点降级至14版本:

npm install -g n
n 14
# if one of the commands does not pass, you may need to use sudo
sudo npm install -g n
sudo n 14

如果你使用NVM, VS Code和VS Code任务资源管理器来运行使用node-sass的npm脚本,下面的警告将为你节省一些时间。

I was using VS Code's Task Explorer to run my scripts and have installed multiple Node versions using NVM, defaulting to the current latest version 16. When I opened my VS Code repository and ran nvm use 10 in a new terminal, the Node and npm version in that terminal window correctly downgrades, but the version of node/npm used by the Task Explorer runner remained at Node 16. So when running my webpack script using the VS Code Task Runner, node-sass would still throw the environment error of this question.

解决方案是不使用VS Code任务运行器,在你改变节点版本的终端上运行你的脚本,或者使用下面的命令改变默认的NVM节点版本,重新启动VS Code,然后使用任务资源管理器/运行器。

NVM别名默认10(或任何你需要node-sass兼容性的版本)

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:)

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。