I'm not that familiar with lerna, but from what I found it looks like the individual package yarn.lock files are not used after mono-repo creation. I couldn't find official lerna guidelines on that, but there were a couple of old issues/prs related to it that seemed to be going in the direction of not using them for most configs.
In addition they haven't been updated since d1b0606a843c9eacec89081c02bb5e70a1a3c11d "Create jest-environment-enzyme and eslint-config-jest-enzyme"
I'm not 100% sure though, so really would appreciate feedback from someone more familiar with lerna.
I'm not that familiar with lerna, but from what I found it looks like the individual package yarn.lock files are not used after mono-repo creation. I couldn't find official lerna guidelines on that, but there were a couple of old issues/prs related to it that seemed to be going in the direction of not using them for most configs.
In addition they haven't been updated since d1b0606a843c9eacec89081c02bb5e70a1a3c11d "Create jest-environment-enzyme and eslint-config-jest-enzyme"
I'm not 100% sure though, so really would appreciate feedback from someone more familiar with lerna.