The ultimate guide on how to run PKHeX on Linux [updated 4/2026]

[autofire372]

I set up a fresh wine prefix for PKHeX only on a new laptop, installed dotnet 10.0.6 into it, and I can't open the Trainer Info tab editing a Gen 5 save. All I get are CultureNotFound exceptions. I tried forcing en-US.UTF-8 using environment variables, but it still won't work.

[Taku86]

15 minutes ago, autofire372 said:

I set up a fresh wine prefix for PKHeX only on a new laptop, installed dotnet 10.0.6 into it, and I can't open the Trainer Info tab editing a Gen 5 save. All I get are CultureNotFound exceptions. I tried forcing en-US.UTF-8 using environment variables, but it still won't work.

I am aware of this. Starting from Wine version 11.5, there is currently a regression due to a new language code added to ICU, which for some reason is not recognized. There is already an open bug tracking this issue, hopefully someone will see and fix it. For now, use version 11.4, which is the latest safe version.

[autofire372]

3 minutes ago, Taku86 said:

I am aware of this. Starting from Wine version 11.5, there is currently a regression due to a new language code added to ICU, which for some reason is not recognized. There is already an open bug tracking this issue, hopefully someone will see and fix it. For now, use version 11.4, which is the latest safe version.

No can do; I'm on an Arch-based distro, so downgrading wine isn't really feasible.

I guess I'm stuck waiting for a bugfix...

[Taku86]

Just now, autofire372 said:

No can do; I'm on an Arch-based distro, so downgrading wine isn't really feasible.

I guess I'm stuck waiting for a bugfix...

You can easily downgrade packages with downgrade. That's exactly what I'm doing right now.

[autofire372]

11 minutes ago, Taku86 said:

You can easily downgrade packages with downgrade. That's exactly what I'm doing right now.

Figured it out; had to re-create PKHeX's wine prefix afterward, but it's working now.