Unhandled exception when listing devices about scallion HOT 2 CLOSED

This error is a crappy way of telling you that you don't have the OpenCL framework installed correctly. I can't really remember the steps I took to get OpenCL working on my Nvidia card in my Arch laptop. I suggest checking out the ever-awesome Arch wiki, and maybe looking for a cryptocoin GPU mining guide, if you can still find one.

Please report back if you're able to figure it out. If you put together a tutorial (or even just list of steps), I'd be glad to include it in the README.

from scallion.

Thanks for your answer. Indeed, i don't have OpenCL framework installed. I didn't realize it was a dependency of scallion, so i asked AUR maintainer to add it to dependencies: https://aur.archlinux.org/packages/scallion/

Anyway, installing opencl-nvidia from Arch Linux repos solved the problem.

from scallion.