`yarn run ...` no longer working

[SethDavenport]

Do you want to request a feature or report a bug?

Bug

What is the current behavior?

package.json:

  "scripts": {
    "wat": "echo wat",
    // ...

My project has a bunch of stuff as npm scripts in package.json. Previously, with the old package name, (yarnpkg), they worked fine:

> npm install -g yarnpkg
> yarn --version
0.15.1
> yarn run wat
yarn run v0.15.1
$ echo wat
wat
✨  Done in 0.08s.

However since obeying the nice deprecation message and installing the yarn package instead, yarn run fails on everything:

> npm uninstall -g yarnpkg
> npm cache clean
> npm install -g yarn
> yarn --version
0.15.1
> yarn run wat
yarn run v0.15.1
$ "echo wat"
sh: echo wat: command not found
error Command failed with exit code 127.
info Visit http://yarnpkg.com/en/docs/cli/run for documentation about this command.

If the current behavior is a bug, please provide the steps to reproduce.

See above.

What is the expected behavior?

I would expect yarn 0.15.1 from npm install -g yarn to behave the same as yarn 0.15.1 from npm install -g yarnpkg

Please mention your node.js, yarn and operating system version.

Mac OS X El Capitan 10.11.5
Node 6.3.0
Yarn 0.15.1

[cozuya]

Works fine on Windows fyi.

[pbrdmn]

I am seeing the same issue on macOS Sierra 10.12 (16A323), scripts defined in package.json are not being found when run from yarn.

> node -v
v6.5.0
> npm -v
3.10.3
> yarn --version
0.15.1
>  yarn start
yarn start v0.15.1
$ "react-scripts start" 
sh: react-scripts start: command not found
error Command failed with exit code 127.
info Visit http://yarnpkg.com/en/docs/cli/start for documentation about this command.

However calling the script directly executes correctly.

> yarn run react-scripts start
yarn run v0.15.1
$ "[...]/node_modules/.bin/react-scripts" start
...

[notahat]

I can confirm this. OS X 10.12 with Node 6.7.0.

Yarn is attempting to run echo wat as the command, rather than echo as the command with wat as an argument.

I also came across this while testing with create-react-app. See facebook/create-react-app#896

[Daniel15]

Same issue as #727

[geoffreydhuyvetters]

same here

npm run development => works fine
yarn run development => 'error Command failed with exit code 127.'

[akofman]

I have the same error if I don't exec first yarn, but after running this last one successfully, yarn run is now ok.

[anakinjay]

Same exact issue:
Mac OSX Yosemite 10.10.5
node: 6.2.2

[STRML]

I believe this is fixed now that #809 was merged about 4 hours ago.

[sebmck]

Fixed via #809.