import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

If you install the Medusa CLI tool with Yarn, then try to use the CLI tool but get the error:

```bash noReport
command not found: medusa
```

You have to add Yarn’s install location to the PATH variable:

<Tabs groupId="operating-systems" isCodeTabs={true}>
<TabItem value="unix" label="MacOS / Linux" default>

```bash
export PATH="$(yarn global bin):$PATH"
```

</TabItem>
<TabItem value="windows" label="Windows">

```bash
# MAKE SURE TO INCLUDE %path%
setx path "%path%;c:\users\YOURUSERNAME\appdata\local\yarn\bin"
# YOURUSERNAME is your account username
```

</TabItem>
</Tabs>

You can learn more in [Yarn’s documentation](https://classic.yarnpkg.com/en/docs/cli/global#adding-the-install-location-to-your-path).