How to turn off yarn@2 PnP?

Question

I am using yarn 2.0.0-rc.27 + workspaces + typescript and I want to turn PnP off and use node_modules again. I tried it with following setting in package.json:

  "installConfig": {
    "pnp": false
  },

But yarn uses PnP mode every time. Is there any option to turn it off?

Answer 1

I ran into a bunch of issues with Yarn 2 as well using same stack. Solution is to create a .yarnrc.yml file with the following line:

nodeLinker: node-modules

Answer 2

Sometimes it is enough to run yarn unplug [problem package name] to get it working again with pnp mode.

For instance in case of next.js v12 pnp mode started to not work again (it worked with v10/v11) and the solution was to simply yarn unplug next -- it remembers that you did it by adding a new dependenciesMeta entry into the package.json file.