and the trailing ';' anyway, still not working, gives me this error : $ ng build --prod --progress=false Options: --version Show version number [boolean] -s, --source A path (relative to the working directory) of the node_modules folder to process. [default: "./node_modules"] ... --help Show help [boolean] Unknown arguments: use-program-dependencies, useProgramDependencies An error occurred during the build: Error: NGCC failed. at NgccProcessor.process (C:\Users\466367\AppInternes\cva\CVA-front\src\main\webapp\node_modules\@ngtools\webpack\src\ngcc_processor.js:129:19) It's ike it's running webpack with unknow arguments...

your webpack.config.js snippet doesn't even compile. Did you at least try it before writing this blog ??