In yarn v1 we initialize create react app using yarn create react-app my-app. How to initialize the same in yan v2.
The above command gives the error
Usage Error: No project found in <<directory>>
$ yarn run <scriptName> ...
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2 Answers
Check your yarn version:
yarn --version
If it's below 1.22 you may need to upgrade it to use yarn 2:
npm install -g yarn
You can then create your app:
yarn create react-app my-app
cd my-app
yarn set version berry
yarn
yarn start
This should have your react app up and running using yarn 2. You may want to remove the node_modules folder:
rm -R node_modules
Also, you need the next line on .yarnrc.yml
nodeLinker: "node-modules"
4 Comments
dwjohnston
is
yarn create react-app a typo? It shouldn't have a space?
jclyons52
no it's not a typo classic.yarnpkg.com/en/docs/cli/create
Kzqai
Not sure why you rm -R node_modules here and then set the nodeLinker to node-modules in the yarnrc? Seems like whatever that is designed to accomplish, it would require an additional run of yarn install after that which would recreate the node_modules because you've moved away from nodeLinker: "pnp" ?
Maytha8
You should just use
npm install -g yarn@berry, since the latest tag is Yarn Classic (1.x)You can use yarn dlx create-react-app my-app. It will work.
There are a lot of changes came with the yarn version2 update.
check this also for additional info: https://dev.to/arcanis/introducing-yarn-2-4eh1
1 Comment
dwjohnston
This doesn't work particularly well within a yarn 2 monorepo - it will also add the .pnp.cjs file, .yarn folder into the package folder, rather than it being at the root.