Problems with library build, when exists dependencies between modules

[Noeldesarrollo]

🐞 Bug report

Command (mark with an x)

• [ ] new
• [x] build
• [ ] serve
• [ ] test
• [ ] e2e
• [ ] generate
• [ ] add
• [ ] update
• [ ] lint
• [ ] xi18n
• [ ] run
• [ ] config
• [ ] help
• [ ] version
• [ ] doc

Is this a regression?

I don't know exactly, using cli 7.2.4 version there is no problem

Description

Test done with angular 9 library. At start, we have two modules that are packed in the same library, with paths (aliases) relative to the root library. One of modules, have as dependency some service of other module. And now we have problems executing the build task.

🔬 Minimal Reproduction

You could be able to reproduce 2 different errors. First clone that repo and launch npm install. Now you can launch ng build --prod and get one kind of error, and launch ng build to get another kind of error

This is repo: https://github.com/Noeldesarrollo/angular9-lib-build-issue

🔥 Exception or Error

Error throwed by ng build --prod

Error throwed by ng build

🌍 Your Environment

ng version 9.1.1

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