I have this error when I like update all system: root@arch-maykel /home/maykel/ # LANG=C pacman -Syu :: Synchronizing package databases... core is up to date extra is up to date community is up to date multilib is up to date archlinuxfr is up to date :: Starting full system upgrade... resolving dependencies... looking for inter-conflicts... :: jre7-openjdk and jre7 are in conflict (java-runtime). Remove jre7? [y/N] error: unresolvable package conflicts detected error: failed to prepare transaction (conflicting dependencies) :: jre7-openjdk and jre7 are in conflict (java-runtime=7) I find the solution in https://bbs.archlinux.org/viewtopic.php?id=154154 but not worked for me: root@arch-maykel /home/maykel/ # LANG=G yaourt -Rdd jre7-openjdk error: target not found: jre7-openjd Thanks in advanced.