Within a yarn workspace, how can I force a resolution for a child project's dependency?

Question

I'm using a library that has supports another library with a wide range of versions as a peer dependency. Unfortunately, one of the child projects of the workspace pulls in a version different from the child project that uses the library. As a result, they end up requiring different versions.

I'm trying to use selective resolutions to handle this and force it to use the correct version (https://yarnpkg.com/lang/en/docs/selective-version-resolutions/) but I'm not having any luck.

It's possible I'm misunderstanding how to utilize these.

My current setup is I have a root workspace with these children inside: Project A package.json (which is the source of the issue):

   dependencies: {
      backbone.marionette: '2.4.1'
   }

Project B package.json (which is the application having issues):

  dependencies: {
         backbone.marionette: '1.8.8',
         @organization/UILibrary: '0.0.22'
   }

The @organization/UILibrary (which is outside the workspace) package.json looks like so:

  peerDependencies: {
       backbone.marionette: ">= 1 < 3"
  }

Unfortunately, even though Project B has no dependency on Project A, when @organization/UILibrary is pulled into Project B it gets backbone.marionette version 2.4.1 for it's requires (whereas the requires local to Project B get 1.8.8).

My attempt to use resolutions is updating Project B package.json to this:

   dependencies: {
         backbone.marionette: '1.8.8',
         @organization/UILibrary: '0.0.22'
    },
    {
    "resolutions": {
        "@organization/**/backbone.marionette": "1.8.8",
        "@organization/backbone.marionette": "1.8.8",
        "@organization/UILibrary/backbone.marionette: "1.8.8",
        "@organization/UILibrary/**/backbone.marionette: '1.8.8"
    }

Any ideas? Based on some digging in yarn's issues and some of their selective dependency PRs (see https://github.com/yarnpkg/yarn/issues/4874) I believe it may be due to the fact that the UILibrary is scoped (has a slash).

Answer 1

I ran into something similar recently; what I found is that resolutions only works in the root package.json. Try moving the resolutions there instead of in Package B's.