Running Jest on an NX library type checks imported buildable libraries. How do I avoid that?

[eyalellenbogen]

I have a library - my-library. It has imports to another library - old-library, which is a buildable one. The old-library has a not-so-strict TS configuration (it has a lot of legacy code). When running Jest on my-library I get TS errors for the imported old-library files. How do I tell NX/Jest to ignore these and treat this namespace import as a black box?

[moatorres]

Can you share the error you're getting and both tsconfig.json configurations?

[eyalellenbogen]

I create a repo with the reproduction.
https://github.com/eyalellenbogen/temp-nx-cross-lib-jest-ts-issue
Run the lib1 test and you'll get the error: