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

当使用Visual Studio中的任务运行器资源管理器时,确保你优先选择正确的PATH。

还要确保,一旦你改变优先级,重新启动VS。

$(PATH)指向默认节点路径 .\node_modules\.bin指向本地项目路径

因此,当您使用NVM切换节点版本时,您应该选择系统路径。

其他回答

试试这个:

npm --depth 9999 update
npm rebuild node-sass

下面是node和node-sass兼容版本列表。

NodeJS  Supported node-sass version *
Node    15        5.0+   
Node    14        4.14+ 
Node    13        4.13+, < 5.0   
Node    12        4.12+  
Node    11        4.10+, < 5.0   
Node    10        4.9+   
Node     8        4.5.3+, < 5.0  
Node  <  8   <    5.0     < 57

如果问题存在,请升级或降级版本。

删除node_modules并运行npm install为我修复了这些错误。

其他人说:npm重建node-sass或npm审计修复可能会有帮助。

下面的堆栈跟踪链接帮助我解决了这个问题。

Module build failed: Error: Node Sass does not yet support your current environment: Windows 64-bit with Unsupported runtime (64)
For more information on which environments are supported please see:
https://github.com/sass/node-sass/releases/tag/v4.7.2

这个链接(https://github.com/sass/node-sass/releases/tag/v4.7.2)清楚地显示了所支持的节点版本。

    OS      Architecture    Node
    Windows x86 & x64       0.10, 0.12, 1, 2, 3, 4, 5, 6, 7, 8, 9
    ...     ...             ...    

将节点版本降级到8.11.1后,再次执行npm install。收到以下信息。

Node Sass could not find a binding for your current environment: Windows 64-bit with Node.js 8.x

Found bindings for the following environments:
  - Windows 64-bit with Unsupported runtime (64)

This usually happens because your environment has changed since running `npm install`.
Run `npm rebuild node-sass --force` to build the binding for your current environment.

最后,按照指示运行npm rebuild node-sass——force,一切都开始工作了

NPM卸载node-sass && NPM安装node-sass是更好的解决方法