Angular CLI“未知选项:'--sourcemap'"错误 [英] Angular CLI "Unknown option: '--sourcemap'" error

问题描述

我尝试使用以下命令在我的 Angular-Sass 项目中启用源映射:

I try to enable source maps in my Angular-Sass project with these commands:

ng serve -sm -ec
ng serve --sourcemap --extract-css
ng serve --sourcemaps=true --extract-css=true

然而，所有这些都会产生未知选项"错误.这些标志都不起作用.

However all of them create "Unknown option" errors. None of these flags work.

我怎样才能做到这一点?

How can I make this work?

这是ng --version的输出:

Angular CLI: 7.3.0
Node: 8.9.4
OS: linux x64
Angular: 7.1.4
... animations, common, compiler, core, forms, http
... platform-browser, platform-browser-dynamic, router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.8.9
@angular-devkit/build-angular     0.8.9
@angular-devkit/build-optimizer   0.8.9
@angular-devkit/build-webpack     0.8.9
@angular-devkit/core              0.8.9
@angular-devkit/schematics        7.3.0
@angular/cli                      7.3.0
@angular/compiler-cli             7.0.4
@ngtools/webpack                  6.2.9
@schematics/angular               7.3.0
@schematics/update                0.13.0
rxjs                              6.4.0
typescript                        3.1.6
webpack                           4.16.4

推荐答案

调用命令

--source-map=true|false

https://angular.io/cli/build

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