I am enable to AUTO INSTALL PROPRIETARY DRIVERS.
it is showing This error in Manjaro KDE plasma.
Starting
Using config 'video-hybrid-intel-nvidia-390xx-bumblebee' for device: 0000:01:00.0 (0300:10de:0df1) Display controller nVidia Corporation GF108M [GeForce GT 420M]
Using config 'video-hybrid-intel-nvidia-390xx-bumblebee' for device: 0000:00:02.0 (0300:8086:0046) Display controller Intel Corporation Core Processor Integrated Graphics Controller
Installing video-hybrid-intel-nvidia-390xx-bumblebee...
Sourcing /etc/mhwd-x86_64.conf
Has lib32 support: true
Sourcing /var/lib/mhwd/db/pci/graphic_drivers/hybrid-intel-nvidia-390xx-bumblebee/MHWDCONFIG
Processing classid: 0300
Sourcing /var/lib/mhwd/scripts/include/0300
:: Synchronizing package databases...
error: failed to update core (unable to lock database)
error: failed to update extra (unable to lock database)
error: failed to update community (unable to lock database)
error: failed to update multilib (unable to lock database)
error: failed to synchronize all databases
Error: pacman failed!
Error: script failed!
Done ...