Issue during install

[SirionRazzer]

Using plain Blackarch I installed XFCE. When installing blackmate I got this issue:

Installation commands:

# pacman -S xfce4 xfce4-goodies
# pacman -S blackmate

Output:

...
(4/4) checking for file conflicts                  [####################] 100%
error: failed to commit transaction (conflicting files)
blackarch-wallpaper: /usr/share/blackarch/wallpaper.jpg exists in filesystem
blackarch-wallpaper: /usr/share/blackarch/wallpaper.png exists in filesystem
Errors occurred, no packages were upgraded.

After manually removing both mentioned wallpapers the installation proceeds correctly and blackmate works.