How do you 'npm install' in docker volume?

DevKinsta Questions
1

I’m trying to go through the Custom Gutenberg Block Development With the WordPress Block Editor course on Kinsta Academy.

In it, on the ’ Setting Up a Block Plugin With @wordpress/create-block’ section he talks about navigating to the site’s plugin directory and running npx @wordpress/create-block.

Mine is located here - \\wsl.localhost\docker-desktop-data\data\docker\volumes\DevKinsta\public\test-site\wp-content\plugins - so I open that in the terminal and try to run it, but get the following error:

`UNC paths are not supported. Defaulting to Windows directory.

Creating a new WordPress plugin in the my-first-block directory.
node:internal/process/promises:288
triggerUncaughtException(err, true /* fromPromise */);
^

[Error: EPERM: operation not permitted, mkdir ‘C:\Windows\my-first-block’] {
errno: -4048,
code: ‘EPERM’,
syscall: ‘mkdir’,
path: ‘C:\Windows\my-first-block’
}

Node.js v18.12.1`

I’ve been banging my head against the wall trying to figure out a way to get this to work, but haven’t had any luck. Anyone have any suggestions?

2
  • I have tried running the npx command elsewhere and manually moving the result over, which works, but I also need to be able to open the plugins directory in vs code for development & be able to run npm start in the directory.
4

Hi @ghughes13 :wave:

It looks like npx uses Command Prompt (cmd.exe) which does not have the proper permissions to create directories in C:\Windows, which is the default when you try to specify a UNC path.

Also, cmd.exe isn’t running as Administrator, so it will get a Operation not permitted error because it’s trying to mkdir (create a directory) in C:\Windows\ which requires Administrator user or group access.

Would you be able to try this solution, and let me know if it works?

Map your UNC path to a normal drive letter