Error mounting /dev/mmcblk0p1 at /media/sherman/NIKON D3300: Command-line `mount -t "exfat" -o "uhelper=udisks2,nodev,nosuid,uid=1002,gid=1000,iocharset=utf8,namecase=0,errors=remount-ro,umask=0077" "/dev/mmcblk0p1" "/media/sherman/NIKON D3300"' exited with non-zero exit status 32: mount: unknown filesystem type 'exfat'