Yarn - Command yarn import error: This package doesn't seem to be present in your lockfile; try to make an install to update your resolutions

Question

I'm looking for using yarn and npm together in my project and if I find yarn useful for my particular case, I could move my project to use yarn only.

Nevertheless, I'm getting the following error with $yarn import :

local:project_middleware jgil$ yarn import

Internal Error: project-middleware@workspace:.: This package doesn't seem to be present in your lockfile; try to make an install to update your resolutions
at J.getCandidates (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:325115)
at i.getCandidates (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:314232)
at /Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:335605
at Array.map (<anonymous>)
at Ae.resolveEverything (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:335321)
at async Ae.applyLightResolution (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:357937)
at async Ae.restoreInstallState (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:357667)
at async Ke.execute (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:98394)
at async Ke.validateAndExecute (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:2:626801)
at async j.run (/Users/jgil/Development/BerserkerStudio/project_middleware/.yarn/releases/yarn-berry.cjs:17:3854)

I have already run $yarn set version berry and tried out again and again with different combinations of removing the node_modules directory, running npm install , etc. and nothing gets to make it work... no idea of what's missing.

Could it be a problem with either the version of Node.js or any other component I'm using?

Answer 1

The problem in here seems to be an existing yarn.lock file inside of one of the workspaces. Deleting it solves the problem.

More info:

Example: 3 workspaces: 2 create-react-app ( app , home ) and one shared component: ( components )

Inside the component folder a lingering yarn.lock file exists. Remove it.

Also check that:

1. All your workspaces have "private": true in each of their package.json (same level as name , private , source ).
2. Check that you have added your workspaces inside a "workspaces" key in the main package.json
3. When you're executing yarn workspaces myworkspace myworkspace matches the name of your workspace in its package.json . In my case, the name of the workspace inside the components folder is called @schon/components , so I need to address it as yarn worksapces @schon/components instead.

Answer 2

The same error appears for me, I discovered that I had added .yarnrc.yml by mistake. After deleting the file and its reference in yarn-berry.cjs I had the solution and the project ran

Answer 3

I have met the same case .

remove the yarnrc.yml and it worked .

ls -a

rm .yarnrc.yml

it is worked for me .