Error: set the style to scss

[sh107]

Please provide us with the following information:

OS?

Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
Mac Sierra

Versions.

Please run ng --version. If there's nothing outputted, please run in a Terminal: node --version and paste the result here:

                         _                           _  _

__ _ _ __ __ _ _ _ | | __ _ _ __ ___ | |()
/ || '_ \ / _ || | | || | / ` || '|___ / __|| || |
| (| || | | || (| || || || || (| || | |___|| ( | || |
_,||| || _, | _,||| _,||| _|||||
|_/
angular-cli: 1.0.0-beta.25.5
node: 7.2.1
os: darwin x64
@angular/common: 2.4.3
@angular/compiler: 2.4.3
@angular/core: 2.4.3
@angular/forms: 2.4.3
@angular/http: 2.4.3
@angular/material: 2.0.0-beta.1
@angular/platform-browser: 2.4.3
@angular/platform-browser-dynamic: 2.4.3
@angular/router: 3.4.3
@angular/compiler-cli: 2.4.3

Repro steps.

Was this an app that wasn't created using the CLI? What change did you do on your code? etc.

I tried to change the style from css to scss using the following command

ng set defaults.styleExt scss

This gives the following error by running "ng serve"

The log given by the failure.

Normally this include a stack trace and some more information.

Path must be a string. Received { source: 'environments/environment.ts',
dev: 'environments/environment.ts',
prod: 'environments/environment.prod.ts' }
TypeError: Path must be a string. Received { source: 'environments/environment.ts',
dev: 'environments/environment.ts',
prod: 'environments/environment.prod.ts' }
at assertPath (path.js:7:11)
at Object.resolve (path.js:1146:7)
at Object.getWebpackCommonConfig (/Users/sijinhe/WebstormProjects/ng2-phenomenal-portal/node_modules/angular-cli/models/webpack-build-common.js:102:25)
at new NgCliWebpackConfig (/Users/sijinhe/WebstormProjects/ng2-phenomenal-portal/node_modules/angular-cli/models/webpack-config.js:24:49)
at Class.run (/Users/sijinhe/WebstormProjects/ng2-phenomenal-portal/node_modules/angular-cli/tasks/serve-webpack.js:23:22)
at /Users/sijinhe/WebstormProjects/ng2-phenomenal-portal/node_modules/angular-cli/commands/serve.run.js:37:22
at process._tickCallback (internal/process/next_tick.js:103:7)

Mention any other details that might be useful.

I changed the angular-cli.json back to its original setting.
It now comes back to work. There must be something wrong happening using the command "ng set defaults.styleExt scss"

---

Thanks! We'll be in touch soon.

[beeman]

@sh107 issue confirmed.

To manually switch to using scss please update the value of defaults.styleExt to scss in angular-cli.json.

[filipesilva]

Dupe of #4044

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