here is what my yarn outdated looks like:

Then I do yarn upgrade --latest, get the following error:
error Package "" refers to a non-existing file '"/home/anh/work/sc/store-default"'.
info Visit https://yarnpkg.com/en/docs/cli/upgrade for documentation about this command.
Error: Package "" refers to a non-existing file '"/home/anh/work/sc/utils"'.
at MessageError.ExtendableBuiltin (/usr/share/yarn/lib/cli.js:721:66)
at new MessageError (/usr/share/yarn/lib/cli.js:750:123)
at FileResolver.<anonymous> (/usr/share/yarn/lib/cli.js:50229:15)
at Generator.next (<anonymous>)
at step (/usr/share/yarn/lib/cli.js:310:30)
at /usr/share/yarn/lib/cli.js:321:13
I tried to remove node_modules, removing yarn.lock file and install again, still the same error. I guess there are some issue with the latest 1.8.0 release.
I tried many packages and even older versions, all of these are failed. I can't install any Uppy package right now.
@minderrd don't use ^, you can pin the exact version in package.json
For example:
"@uppy/core": "1.7.1",
"@uppy/react": "1.4.2",
@ptgamr It works with 1.7.1, but 1.8.0 still failed, thanks!
I created a new project: npm init
Then added the 1.7.1 version: yarn add @uppy/[email protected] it works
Then added the 1.4.2 version of uppy react: yarn add @uppy/[email protected] ==> It fails
I also tried with 1.4.1 and 1.4.0
If someone has a workaround, please share it
Sorry for the trouble! Looks like the Lerna publish went wrong. We'll get patch releases out ASAP.
@arturi just published 1.9.1 which appears to fix the issue:

Thanks all for notifying us!
Most helpful comment
@arturi just published 1.9.1 which appears to fix the issue:

Thanks all for notifying us!