Yarn: 'yarn' is not recognized as an internal or external command, operable program or batch file.

[rhtpandeyIN]

nodejs version: 7.4.0
OS: Windows 7

I installed yarn by using yarn.msi file, and it installed successfully. But when I tried to check yarn version on my system I got following error:
'yarn' is not recognized as an internal or external command,
operable program or batch file.

At first glance I thought it may issue of incorrect PATH or may be PATH is not set by msi. Then I checked my system PATH and I found correct PATH is already there.

Solution: the problem was one extra "\" was missing after bin.
before : C:Program Files (x86)Yarnbin (Not working)
After : C:Program Files (x86)Yarnbin (Working)

Please look into the issue. Thanks.

[lubojanski]

nodejs version: 6.5.0 and 7.4.0

Got the same problem,
now the default path was: C:Program Files (x86)Yarn.bin
Tried without dot and with/without slash, didn't work.

edit:
installed it by npm install yarn -g

[yfain]

I don't use Windows, but if you install yarn locally, you should run its local version:
./node_modules/.bin/yarn

[rhtpandeyIN]

@yfain , I installed yarn through .msi (windows installer) file, and as per my understanding it should install globally by that, because it (yarn installation directory path) also got registered into the system path automatically. Hence it should recognize as an external command. Although when I changed path like above mentioned way, it got worked.

[locorocorolling]

Same issue as @rhtpandeyIN on windows 7 with node 6.9.1, fixed with same solution

[OutsourcedGuru]

Same issue as @rhtpandeyIN on Windows 7 Professional with node v6.9.5. Opened new command shell hoping that path would have been added—it wasn't. Manually added path to each invocation and it seems to work. I would expect an MSI to update the global path for a Windows install.

[jameswilson281]

Same issue as @rhtpandeyIN on Windows 8.1 with node v7.7.1

[fjoshuajr]

Same issue as @rhtpandeyIN on Windows 7 Ultimate x64 with node v6.9.5. Solved with the same solution.

[trondstroemme]

Same issue as @rhtpandeyIN on Win 10 Pro 64-bit. Resolved as per @lubojanski 's last comment.

[1j01]

Is it possible the solution of adding a backslash is working (for some people) merely by triggering some sort of update? (That the installer isn't, for some reason?) I see a lot of entries in PATH that leave off the backslash including git, nvm, nodejs, and Windows system paths. Does it still work if you change it back?

(https://github.com/yarnpkg/yarn/issues/1648 is an older, if somewhat less descriptive issue for this problem.)

[ctcoulter]

posted this on the other read.. if anyone else is running into this issue, might help:

I was bashing my head against this one for a while. Hopefully this helps someone out.

The problem I had was that the installer placed the Yarn files in two locations that were both in my path. > The wrong one was being picked up when trying to execute.

C:Program Filesnodejsyarn.cmd
C:Program Files (x86)Yarnbinyarn.cmd

I just moved the files out of my nodejs directory and it worked. The error message about the path not > being found is most likely due to the %~dp0 from the nodejs directory not being in the right location.

EDIT: to add to this, just went and compared the two that were generated.. the one generated in the nodejs directory had:

@"%~dp0\..\..\Users\chris\AppData\Local\Yarn\config\global\node_modules\.bin\yarn.cmd" %*

The "node_modules" does not exist in my Yarnconfigglobal directory.

The yarn.cmd generated in the Yarn directory had the following (which does exist):

node "%~dp0\yarn.js" %*

I made sure that there weren't any yarn.cmd files on my hard drive at all before reinstalling via the MSI, so they were both definitely generated by the MSI installation. It might just be some kind of path configuration on my machine that caused it to generate two... but hopefully that's helpful.

[Daniel15]

Hmmm... This is very strange... The trailing backslash shouldn't matter, and the current MSI has worked fine on various VMs I've tested it on, as well as on my Windows build server (which is running Windows Server 2012).

Is it possible the solution of adding a backslash is working (for some people) merely by triggering some sort of update? (That the installer isn't, for some reason?)

@1j01 This is a pretty interesting theory! We're using WiX to build the installer, and a looooot of apps use it (Node.js uses it as well, for example). I wonder if we're hitting some bug in WiX.

[rodrigoBerlochi]

I see also the same issue after installing Yarn v0.24.6
Node v6.9.0
'yarn' is not recognized as internal or external command :(
I used the msi installer for Windows.

[Daniel15]

@rodrigoBerlochi Can you please check your path and ensure c:\Program Files (x86)\Yarn\bin was added to it?

[TrevorScrews]

I'm getting this error when trying to run yarn in powershell. The path that was added is to my AppData folder. I changed it to the c:\Program Files (x86)\Yarn\bin and still got this error. When running from the command line, it works. I didn't try from command line until the path was changed, so I'm not sure if it would have worked with the other path or not.

Node: 6.8.0
Yarn: 0.27.5

[rodrigoBerlochi]

Hi @Daniel15 Yes, it was. That was the weird point. We tried installing it using NPM. And then it worked. But I've read it isn't the recommended approach.
Thanks for your answer

[chhonmeily]

For window 10 user please follow these article:

1. https://yarnpkg.com/en/docs/install#windows-tab
2. https://yarnpkg.com/en/docs/install#alternatives-tab
   finally got it working. god damn me.

[arcanis]

When your PATH is modified, the currently opened cmd windows aren't affected, you need to close them and reopen them. Could that be your issue?

[BYK]

Anyone sees anything we can do on the Yarn side for this or can we close the issue?

[duycoder]

I have the same problem when i install yarn the 1st time, but then i restart my windows 7 computer. It's worked. I use chocolately and run the cmd : "choco install yarn --version ...". Don't know about the other OS

[BYK]

@duycoder see @arcanis' answer right above: https://github.com/yarnpkg/yarn/issues/2504#issuecomment-320648293

[BYK]

Closing due to inability to act on this ticket.

[JanisKroja]

@Daniel15 had the right solution for me, changing PATH from "C:UsersJohnnyAppDataLocalYarnbin" to "C:Program Files (x86)Yarnbin" fixed it.

[porkopek]

Like @arcanis said, closing cmd window and opening again, and yarn seems to be installed properly

[vantisDev]

Just installed yarn thrugh installer. I have windows 8 x64. I had the path correctly pointing to "C:Program Files (x86)Yarnbin" and had closed and reopened my cmder, and still having the issue.

I moved the Yarn folder to Program Files, modifying path accordingly. Problem solved.

I suggest you give us options depending on whether we run x32 or x64.

[kalpeshbadgujar3]

Please try by restarting IDE after installing yarn using .msi.
This might solve your problem.
Success!

[hassannomani]

Closing cmd and reopening solved the issue. Thanks @arcanis

[cuse]

You can try this and it solved the problem to me.

_npm install yarn -g_

Thanks

[mkasina]

This worked like a charm for me..

npm install yarn -g

Thanks @cuse

[ShrutiAkkala]

Thanks, @cuse.Yes, It worked for me as well with 👍
npm install yarn -g

[rhn94]

There might be 2 locations of yarn, either in the AppData folder or in Program Files x86

If you've installed via chocolatey or msi, it's in the Program Files x86

Change the environment path variable to that location

[ptumuluri8]

I installed yarn using chocolatey but not globally (didn't mention -g) yarn was installed but not found in cmd. After setting the path C:Program Files (x86)Yarnbinyarn.cmd it started working.

Thanks for the group.

[snarun]

Thank you! Setting the path in environment variable as well as yarn global installation solves both the problems.

[PriyankaVrma]

Can you please help me with the solution for this one

[jd6503]

For windows follow the below step

• Installed yarn by using yarn.msi file.

• Check correct the environment variable path.

  C:Program Files (x86)Yarnbin

• Run command npm install yarn -g

[ghost]

it work!

C:Usersyou>npm install yarn -g
C:UsersyouAppDataRoamingnpmyarn -> C:UsersyouAppDataRoamingnpmnode
_modulesyarnbinyarn.js
C:UsersyouAppDataRoamingnpmyarnpkg -> C:UsersyouAppDataRoamingnpmn
ode_modulesyarnbinyarn.js

• [email protected]
  added 1 package in 1.312s

C:Usersyou>yarn -v
1.9.4

[yakupad]

I try Windows PowerShell

Worked for me :)

[lgloredana]

I've got the same issue today after installing yarn via msi.
For me the solution was to open a new console, yarn --version worked.
I've tried yarn --version an a console already opened before installing and it didn't worked.

[Chirag5528]

Install it in Program Files (x86) only. This solves the problem.
But raises a question why only in this folder why not in "Program Files"
Is "yarn" only applicable for 32-bit operating systems? Don't know just saying.

[tcope25]

Restart PowerShell and it should work

[waleedshkt]

For all experiencing the issue of Windows Command Prompt not recognizing yarn, the reason behind this error being windows unable to detect PATH to the yarn's executable file.

To solve this, simply edit a PATH key under system Environment Variables and add a new path pointing to yarn. For me it's:

C:\Users\YourUserAccountName\AppData\Roaming\npm\node_modules\yarn\bin

If you go to the above path, you'll find a single file called yarn. This is what gets executed when you call yarn from your Windows Command Prompt.

And that's it! I hope it solves the aforementioned problem all of you are currently experiencing 😃

[CelticParser]

Please try by restarting IDE after installing yarn using .msi.
This might solve your problem.
Success!

This worked for vsCode

[Daniel15]

Install it in Program Files (x86) only. This solves the problem.
But raises a question why only in this folder why not in "Program Files"-
Is "yarn" only applicable for 32-bit operating systems? Don't know just saying.

@Chirag5528 - It's just how the installer is built. To install into C:\Program Files, we'd need to have two separate installers: One for 32-bit, and one for 64-bit. That's a bit of a hassle. Having one single installer is more convenient, but it means the installer runs in 32-bit mode.

Yarn itself is written with Node.js and thus it is platform-insensitive.

[Daniel15]

I'm going to lock this since a lot of unrelated conversations are happening here. If you have any new issues, please create a new issue. Thanks!