Sorry, i'm kind of new in manjaro and linux world so i can't understand is this problem can be fixed be somehow. Thanks.
==> Creating install root at /var/lib/manjaro-tools/buildiso/gnome/x86_64/rootfs
-> Installing packages to /var/lib/manjaro-tools/buildiso/gnome/x86_64/rootfs
:: Synchronizing package databases...
core 169,6 KiB 392 KiB/s 00:00 [######################################] 100%
extra 1893,0 KiB 6,25 MiB/s 00:00 [######################################] 100%
community 6,6 MiB 18,0 MiB/s 00:00 [######################################] 100%
multilib 174,6 KiB 2,44 MiB/s 00:00 [######################################] 100%
mbp 12,1 KiB 16,6 KiB/s 00:01 [######################################] 100%
resolving dependencies...
warning: cannot resolve "zfs-utils=0.8.5", a dependency of "linux57-mbp-zfs"
:: The following package cannot be upgraded due to unresolvable dependencies:
linux57-mbp-zfs