Patching lockfile

At some point builds started to fail, and I’m waking up to this:

Found lockfile missing swc dependencies, patching...

error This project's package.json defines "packageManager": "yarn@npm@10.8.1".
However the current global version of Yarn is 1.22.22.

Plus a bunch of errors following this one (which was on line 480), regarding yarn, build steps, etc. This particular project has "packageManager": "npm@10.8.1" inside its lockfile, so I was thinking about some versioning problem, or dependency requirement… There’s nothing yarn related in our project, and I was lost!

So it took me a while to carefully read this one: yarn@npm@10.8.1. For some reason, Next, trying to patch my lockfile, ended up adding yarn@ in front of my npm@10.8.1 line. Which makes it think it needs yarn, version npm@10.8.1, which obviously is not a good yarn version…

There’s a list of possible fixes about it: https://nextjs.org/docs/messages/failed-loading-swc