Sorry if i sound vague in any part, i am completely new.
I have recently started using manjaro-kde and i have set up optimus-manager and it works fine. But vulkan-caps-viewer only shows me Intel graphics and not my dGPU. After some searching somewhere i saw that i need to install nvidia-vulkan and the lib32-nvidia-vulkan-utils for it. However, when its installing i get an error saying
make: *** [Makefile:81: modules] Error 2 ==> ERROR: A failure occurred in build(). Aborting..