ng build --prod => Error: Unknown argument: prod

Issue

When I try to build my angular project in production environment:

ng build --prod --aot

the console returns this error:

Error: Unknown argument: prod

ng serve is working fine and ng build without parameters seems to work too. Why does angular return such an error?

Solution

The reason for this error is the command --prod is deprecated since Angular 12 and removed in Angular 14 based on this Angular-Deprecated APIs and features.

Use --configuration production instead.

So the command will be:

ng build --configuration production

Answered By - Nabeeh_Sawaf