Yarn global command not working

问题

I'm working with Yarn v0.16.1. If I understand correctly (according to the documentation), yarn global add <package> should be the equivalent of npm install -g <package>. However, when I run the example in the docs (with create-react-app), the command runs successfully but create-react-app is then not available from the command line. Here's the output:

$ yarn global add create-react-app
$ yarn global v0.16.1
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
[3/4] 🔗  Linking dependencies...
[4/4] 📃  Building fresh packages...
success Installed create-react-app@0.6.0 with binaries:
  - create-react-app
✨  Done in 3.22s.
$ create-react-app --help
-bash: create-react-app: command not found

Doing a global install with npm has the expected result, and everything works. What am I missing with yarn?

回答1:

You should add export PATH="$PATH:$(yarn global bin)" to your ~/.bash_profile or whatever you use. It would solve the issue.

Depending on how you installed it, Yarn's global folder varies for some reason. You can follow this issue here.

回答2:

Update Dec 2018

Just updating the path didn't work for me. I had to also set the yarn prefix.

Ubuntu 18.04.1 LTS (bionic)
yarn 1.12.3
npm v3.5.2
node v8.10.0
zsh 5.4.2

Steps

Confirm your global bin path
```
yarn global bin
```

I got: /home/username/.yarn/bin

set yarn prefix:

make sure your yarn prefix is the parent directory of your bin directory. You can confirm by running
```
yarn config get prefix
```
when I ran this, my prefix was empty, so I set it:
```
yarn config set prefix ~/.yarn
```
add the following to ~/.bash_profile or ~/.bashrc
```
export PATH="$PATH:`yarn global bin`"
```
for zsh users, be sure to add this line to ~/.zshrc
restart your shell or start a new one

bash -l or zsh

回答3:

In my case yarn global bin wasn't working.

Try a brew reinstall yarn if that's how you installed yarn

👍🏻

回答4:

When switching from bash to zsh, I got the same error, it worked for me:

in your .zshrc 

# NVM Stuff
export NVM_DIR="$HOME/.nvm"
. "$(brew --prefix nvm)/nvm.sh"

# YVM Stuff
export YVM_DIR="$HOME/.yvm"
. "$(brew --prefix yvm)/yvm.sh"

As I understand it, my mistake arose due to the lack of access to version managers