OS error 396 when using OneDrive

[Pdsantos73]

Trying to install fastapi "uv add fastapi[standard]" is showing the following error:

error: Failed to install: certifi-2024.8.30-py3-none-any.whl (certifi==2024.8.30)
Caused by: failed to hardlink file from C:\Users\paulodo\AppData\Local\uv\cache\archive-v0\ez_A-yAgnUYbpxYugeHkX\certifi\py.typed to C:\Users\paulodo\OneDrive - Genesys Telecommunications Laboratories, Inc\DeveloperProject\Python\GenesysClould\middleware_a.venv\Lib\site-packages\certifi\py.typed
Caused by: The cloud operation cannot be performed on a file with incompatible hardlinks. (os error 396)

[zanieb]

It looks like your cache is on a different file system than your project. Can you set UV_LINK_MODE=copy?

[zanieb]

cc @charliermarsh we might want a fallback for this specific error.

[Pdsantos73]

Yes,

I included env variable but de issues persistes

[Pdsantos73]

I placed the variable with venv activated.

[Pdsantos73]

I recently updated UV to the latest version.
This problem only occurs in some dependencies.

[Pdsantos73]

I'm using:
Windows 11
uv 0.4.18 (7b55e97 2024-10-01)
Python 3.12.6

[Pdsantos73]

I created a new project and managed to install it with the uv add "fastapi[standard]" --link-mode=copy

It worked!!

Thanks

[charliermarsh]

I sort of doubt we can react to this error specifically, unless it maps to a clear error kind on io::Error.

[samozturk]

I had the same problem the solutions above didn't work for me. So I did uv cache clean, tried to install again. Solved the issue.

[jromal]

Unfortunately it happens very often to me. I have to clean the cache too.
It may be that I am working on Windows and many python projects are on a "OneDrive" folder, that is considered sometimes as a local folder but sometimes with a different very long name. OneDrive is a shit, but for space reasons I have to use it in the companies laptop.

Someone else having problems with OneDrive?