Types not being included when using modules linked using npm link

[callumacrae]

TypeScript Version: 3.7.0-dev.20190917

Search Terms: linked npm module

Code

This is a build problem, not a code problem. Let me know if this issue should be moved to ts-loader or something like that!

The problem can be reproduced here: https://github.com/callumacrae/typescript-bug

It seems to lie in the tsconfig.json, where in the include I am trying to include the typings from generic-minimal, a repository that will contain (untranspiled) code and modules common between my projects.

Direct link to tsconfig.json: https://github.com/callumacrae/typescript-bug/blob/master/tsconfig.json#L31

When generic-minimal is installed through npm install, this works fine. When it is symlinked in using npm link, I get a type error caused by the vue-meta types not being brought in—and vue-meta is installed in the parent repository, not in generic-minimal. I don't see how the two things should have any effect on each other at all.

I might have got what exactly is causing this issue slightly incorrect but I have been on this since Friday now and this is as small a repro as I've managed to come up with :(

Expected behavior:
Actual behavior:

see above

Related Issues:

This issue seems to be related to #31527, although it isn't the same issue.

[RyanCavanaugh]

We're not able to investigate repros that rely on third-party build tools like vue-cli-service build. If you can reproduce the problem with tsc or something directly equivalent, we can take a look.

Also, please provide direct commands to run in your instructions; it is unnerving for us to execute npm run build from an arbitrary repo without knowing what's happening under the covers, so we have to check what's in package.json anyway.

[callumacrae]

Alright, will try to replicate with tsc :)