Build error: listen EADDRINUSE: address already in use :::4200" error

[itised]

Which @angular/* package(s) are relevant/related to the feature request?

compiler-cli

Description

In v19, running build with the default angular.json will fail if a service is already using port 4200:

Proposed solution

Have build accept a --port flag the same way that serve does.

It might also be nice if by default build used a different port

Alternatives considered

As a workaround, I moved my other running service to a different port. Not a difficult solution, but also not the most ideal.

[alan-agius4]

How is your server.ts configured?