When I do a world update after emerge --sync, this error occurs and stops portage: * ERROR: dev-libs/libxml2-2.9.10-r3::gentoo failed (unpack phase): * unpack: libxml2-2.9.10-r3-patchset.tar.xz does not exist
Thanks for the report. Should be already fixed with a sync. *** This bug has been marked as a duplicate of bug 744850 ***