Issue reinstalling yarn - code: 'MODULE_NOT_FOUND'

Question

Node.js Version:14.0.0
OS: MacOS 10.15.4
Scope (install, code, runtime, meta, other?): Yarn install
Module (and version) (if relevant): internal/modules/cjs/loader.js

Upon running any Yarn command, I get the following error. This is after reinstalling and following this sequence of commands:

YARN UNINSTALL:

yarn cache clean

open terminal
rm -rf node_modules yarn.lock yarn-error.log package-lock.json
brew uninstall --force yarn
npm uninstall -g yarn
yarn -v
which yarn
rm -rf ~/.yarn (OPTIONAL, not recommended)
rm -rf /usr/local/bin/yarn
rm -rf /usr/local/bin/yarnpkg
which yarn

NPM & NODE UNINSTALL:

keep adding to terminal
brew uninstall --force node
brew cleanup
sudo rm -rf /usr/local/{lib/node{,/.npm,_modules},bin,share/man}/{npm*,node*,man1/node*}
sudo rm -rf /usr/local/bin/npm /usr/local/share/man/man1/node* /usr/local/lib/dtrace/node.d ~/.npm ~/.node-gyp
sudo rm -rf /opt/local/bin/node /opt/local/include/node /opt/local/lib/node_modules
sudo rm -rf /usr/local/bin/npm /usr/local/share/man/man1/node.1 /usr/local/lib/dtrace/node.d
brew doctor
brew cleanup --prune-prefix

INSTALL:

same terminal
brew install yarn
brew install node
brew link node
sudo chmod 776 /usr/local/lib
brew link --overwrite node
sudo chmod 755 /usr/local/lib
brew link node
yarn policies set-version
n 12.13.1
11. yarn -v && node -v && npm -v

Then the following appears on terminal upon running yarn command at step 9 of the install:

USER-MacBook-Pro:~ User$ yarn
internal/modules/cjs/loader.js:1017
  throw err;
  ^

Error: Cannot find module '/Users/jlagos/.yarn/releases/yarn-1.21.1.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:1014:15)
    at Function.Module._load (internal/modules/cjs/loader.js:884:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ ]
}

Any help on how to restore Yarn? Seems like node is keeping track of a previous yarn version.

Apocist Apocist · Accepted Answer · 2020-10-07T19:47:15

I keep running into the same issue whenever I update yarn as well. Something possibly in the (currently unseen) $PATH that I've yet to be able to remove.

As @jlagos pointed out, you can trick the system to run the latest version instead of 1.21.1 by copying over the latest over that location.

If you have yet to install or see yarn at /.yarn/ you can install it directly following https://classic.yarnpkg.com/en/docs/install/ or

curl -o- -L https://yarnpkg.com/install.sh | bash

Then create and copy of the file location with the following:

mkdir ~/.yarn/releases/
cp ~/.yarn/lib/cli.js ~/.yarn/releases/yarn-1.21.1.js

yarn --version

When running yarn, it should now state the latest (such as 1.22.5 at the time of writing).

Issue reinstalling yarn - code: 'MODULE_NOT_FOUND'

11. yarn -v && node -v && npm -v

2 Answers