mkinitcpio errors

==> Building image from preset: 'default'
  -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
==> Starting build: 3.5.3-1-ARCH
  -> Running build hook: [base]
  -> Running build hook: [udev]
  -> Running build hook: [autodetect]
  -> Running build hook: [pata]
  -> Running build hook: [scsi]
  -> Running build hook: [sata]
  -> Running build hook: [usb]
  -> Running build hook: [usbinput]
  -> Running build hook: [filesystems]
==> ERROR: file not found: `/lib/modprobe.d/modprobe.conf'
==> Generating module dependencies
==> Creating gzip initcpio image: /boot/initramfs-linux.img
==> WARNING: errors were encountered during the build. The image may not be complete.
==> Building image from preset: 'fallback'
  -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
==> Starting build: 3.5.3-1-ARCH
  -> Running build hook: [base]
  -> Running build hook: [udev]
  -> Running build hook: [pata]
  -> Running build hook: [scsi]
  -> Running build hook: [sata]
  -> Running build hook: [usb]
  -> Running build hook: [usbinput]
  -> Running build hook: [filesystems]
==> ERROR: file not found: `/lib/modprobe.d/modprobe.conf'
==> Generating module dependencies
==> Creating gzip initcpio image: /boot/initramfs-linux-fallback.img
==> WARNING: errors were encountered during the build. The image may not be complete.