I have a HP Pavilion Laptop with an intel core i5 and a Nvidia Geforce MX250 graphics card.
I downloaded the driver for my card from the Nvidia website (the driver is correct for my system I have checked)
While Installing the driver I came across and error
ERROR: Unable to find the kernel source tree for the currently running kernel. Please make sure you have
installed the kernel source files for your kernel and that they are properly configured; on Red
Hat Linux systems, for example, be sure you have the 'kernel-source' or 'kernel-devel' RPM
installed. If you know the correct kernel source files are installed, you may specify the kernel
source path with the '--kernel-source-path' command line option.
I have all previous open source drivers installed by Manjaro disabled
My kernel is KDE Plasma 5.10.61-1-MANJARO
p.s. if you do want to go through installing manualy and want the headers you need to install linuxXXX-headers where XXX is the kernel version, eg if you have 510 installed this would be linux510-headers