Been trying to figure out how to set up a repo with yarn workspaces, webpack and typescript project references. Apologies if this is simply a configuration error on my part, but I'm unable to spot what I might have done wrong. Running on Windows 10

Expected Behaviour

• Freshly clone https://github.com/jedster1111/ts-loader-project-references

• yarn install

• yarn webpack within the a workspace

  • I expect b to be built and write output files to b/dist
  • I also expect webpack to ouput a/dist/index.js
  • I can run node index.js inside of a/dist and see output 45

• Change b/src/index.ts getMeaningOfLife to return 42

• yarn build inside of a

  • I run node index.js inside of a/dist and see output 42

Actual Behaviour

The first yarn build will fail with:

yarn run v1.22.4
$ webpack
Hash: 32473a9cdaa03043ec8e
Version: webpack 4.43.0
Time: 808ms
Built at: 05/21/2020 1:01:35 AM
                       Asset       Size  Chunks             Chunk Names
     ../../b/dist/index.d.ts   53 bytes          [emitted]  
       ../../b/dist/index.js  149 bytes          [emitted]  
../../b/tsconfig.tsbuildinfo    6.3 KiB          [emitted]  
                  index.d.ts   11 bytes          [emitted]  
                    index.js   4.06 KiB    main  [emitted]  main
Entrypoint main = index.js
[./src/index.ts] 140 bytes {main} [built] [1 error]

ERROR in ./src/index.ts
Module not found: Error: Can't resolve 'b' in '/c/coding/jedster1111/ts-loader-project-references/a/src'
 @ ./src/index.ts 3:12-24

ERROR in /c/coding/jedster1111/ts-loader-project-references/a/src/index.ts
./src/index.ts
[tsl] ERROR in /c/coding/jedster1111/ts-loader-project-references/a/src/index.ts(1,32)
      TS2307: Cannot find module 'b' or its corresponding type declarations.
error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

If you check b/dist index.js does actually exist at this point.

If you run yarn build again, webpack will complete successfully.

Another interesting thing to note is if you update getMeaningOfLife to return 42. Build webpack and run the built index.js. I get the old value, 45. Re-run webpack and run the build file again, I now get 42.

It seems like the dependant projects are getting built, but not actually used in the webpack output.

Location of a Minimal Repository that Demonstrates the Issue.

https://github.com/jedster1111/ts-loader-project-references