Incorrect integrity when fetching from the cache

yarn cache clean To fix this, run: yarn cache clean yarn add –dev jest From the yarn cache documentation: yarn cache clean [<module_name…>] Running this command will clear the global cache. It will be populated again the next time yarn or yarn install is run. Additionally, you can specify one or more packages that you … Read more

How to display yarn globally installed packages?

yarn global list The command had issue in Spring 2017, that had been fixed. 2017 workaround Currently I directly list Yarn global packages folder content: Windows: %LOCALAPPDATA%/Yarn/config/global OSX and Linux non-root: ~/.config/yarn/global Linux if logged in as root: /usr/local/share/.config/yarn/global Update June 22, 2020 As of May 12, 2017 this problem has been resolved. See issue … Read more

Yarn – remove package best practices

If you run yarn remove [package] it will remove the package from node_modules and also from the yarn.lock file. If you manually delete from package.json and then run yarn install, the deleted package is not installed and the yarn.lock file is not updated.

What does ‘has unmet peer dependency’ mean when installing a package with yarn?

What is a peer dependency Here is some useful reading on dependency types, and here is info on peer dependencies, but to summarize: Dependency: A library/package your project needs to run. Peer dependency: Used to indicate a library/package your project will hook in to. The package vue-loader has a peer dependency on vue-template-compiler – vue-loader … Read more

Run yarn in a different path

You can use –cwd like so yarn –cwd <path> <yarn command>. The order of arguments is important. Example: yarn –cwd ~/test_project/ dev Because the following will not work: yarn dev –cwd ~/test_project/

Should I commit the yarn.lock file and what is it for?

Yes, you should check it in, see Migrating from npm What is it for? The npm client installs dependencies into the node_modules directory non-deterministically. This means that based on the order dependencies are installed, the structure of a node_modules directory could be different from one person to another. These differences can cause works on my … Read more

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