How to install package with local path by Yarn? It couldn't find package
node.js, npm, yarnpkg
Solution
For yarn version < 2.x
Yarn requires prefix `file:` for local packages.
For relative path:
yarn add file:./../your-project
For absolute path
yarn add file:/dev/your-project
For your example, dependency in `package.json` would be declared as follows:
"my-custom-i18n": "file:./../MyProject.Shared/myproject-i18n",
This works both for Yarn and NPM as well.
It is incompatibility with NPM client, Yarn team is aware and declared to support this behavior - reference on GitHub issue.
Update:
Since v0.21.0 release, `file:` prefix is not needed. See pull-request with fix and changelog.
Problem
In my `package.json` I'm pointing local package `my-custom-i18n` by its relative path: package.json ``` "dependencies": { "core-js": "^2.4.1", "my-custom-i18n": "./../MyProject.Shared/myproject-i18n", "rxjs": "5.0.0-beta.12", ... } ``` `npm install` installs packages correctly, but `yarn` has problem with it and simply cannot find this package: yarn output ``` $ yarn yarn install v0.15.1 info No lockfile found. [1/4] Resolving packages... error Couldn't find package "myproject-i18n" on the "npm" registry. info Visit http://yarnpkg.com/en/docs/cli/install for documentation about this command. ``` I see that it looks it on the `npm` registry, where this package doesn't live. Question Is there any change to use yarn with local packages? By local packages I mean packages pointed by relative path as `my-custom-i18n`.