change default style ext

[soraliu]

Versions

Angular CLI: 6.0.0
Node: 8.11.2
OS: darwin x64
Angular:
...

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.6.0
@angular-devkit/core         0.6.0
@angular-devkit/schematics   0.6.0
@schematics/angular          0.6.0
@schematics/update           0.6.0
rxjs                         6.2.0
typescript                   2.7.2

Repro steps

• exec ng config schematics.@schematics/angular:component.styleext scss -g as the official doc said stories-css-preprocessors

Observed behavior

Invalid JSON character: "s" at 0:0.
Error: Invalid JSON character: "s" at 0:0.
    at _readValue (/usr/local/lib/node_modules/@angular/cli/node_modules/@angular-devkit/core/src/json/parser.js:567:19)
    at parseJsonAst (/usr/local/lib/node_modules/@angular/cli/node_modules/@angular-devkit/core/src/json/parser.js:605:17)
    at Object.parseJson (/usr/local/lib/node_modules/@angular/cli/node_modules/@angular-devkit/core/src/json/parser.js:631:12)
    at normalizeValue (/usr/local/lib/node_modules/@angular/cli/commands/config.js:128:19)
    at ConfigCommand.set (/usr/local/lib/node_modules/@angular/cli/commands/config.js:195:23)
    at ConfigCommand.run (/usr/local/lib/node_modules/@angular/cli/commands/config.js:168:18)
    at /usr/local/lib/node_modules/@angular/cli/models/command-runner.js:278:30
    at Generator.next (<anonymous>)
    at fulfilled (/usr/local/lib/node_modules/@angular/cli/models/command-runner.js:4:58)
    at <anonymous>

Desired behavior

don't throw error

Mention any other details that might be useful (optional)

[soraliu]

but when i exec ng new scss-project --style=scss, it works

[mixtou]

I have the same problem when trying to change existing project from css to scss by executing:
ng config defaults.styleExt scss

Error:

Invalid JSON character: "s" at 0:0. Error: Invalid JSON character: "s" at 0:0. at _readValue (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/node_modules/@angular-devkit/core/src/json/parser.js:567:19) at parseJsonAst (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/node_modules/@angular-devkit/core/src/json/parser.js:605:17) at Object.parseJson (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/node_modules/@angular-devkit/core/src/json/parser.js:631:12) at normalizeValue (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/commands/config.js:128:19) at ConfigCommand.set (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/commands/config.js:195:23) at ConfigCommand.run (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/commands/config.js:168:18) at /Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/models/command-runner.js:278:30 at Generator.next (<anonymous>) at fulfilled (/Volumes/MIXTOU/Projects/HistopathPlatform/web/HistoPathPlatformUI/node_modules/@angular/cli/models/command-runner.js:4:58)

`
Angular CLI: 6.0.5
Node: 10.1.0
OS: darwin x64
Angular: 6.0.3
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, platform-server, router

Package Version

@angular-devkit/architect 0.6.3
@angular-devkit/build-angular 0.6.3
@angular-devkit/build-optimizer 0.6.3
@angular-devkit/core 0.6.3
@angular-devkit/schematics 0.0.46
@angular/cdk 6.1.0
@angular/cli 6.0.5
@angular/flex-layout 6.0.0-beta.15
@angular/material 6.1.0
@ngtools/json-schema 1.1.0
@ngtools/webpack 6.0.3
@schematics/angular 0.6.5
@schematics/schematics 0.0.13
@schematics/update 0.6.5
rxjs 6.2.0
typescript 2.7.2
webpack 4.8.3`

[clydin]

Resolved via #10956 and will be in the next patch release.

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