pkg_add fatal error

[Martin Pieuchot]

I'm always getting errors, I don't know how to help. I'm just a stupid
user of 'pkg_add -u' on a current machine.

OpenBSD 6.1-current (GENERIC.MP) #52: Sun May 7 14:56:02 MDT 2017
***@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP

cat /etc/installurl
https://ftp.fr.openbsd.org/pub/OpenBSD

Fatal error: can't parse OpenBSD::RequiredBy: writing /var/db/pkg/gnome-desktop-3.24.1/+REQUIRED_BY: No such file or directory at /usr/libdata/perl5/OpenBSD/RequiredBy.pm line 30.
OpenBSD::RequirementList::fatal_error(OpenBSD::RequiredBy=HASH(0x101b8953da78), "writing") called at /usr/libdata/perl5/OpenBSD/RequiredBy.pm line 67
OpenBSD::RequirementList::synch(OpenBSD::RequiredBy=HASH(0x101b8953da78)) called at /usr/libdata/perl5/OpenBSD/RequiredBy.pm line 122
OpenBSD::RequirementList::add(OpenBSD::RequiredBy=HASH(0x101b8953da78), "gnome-control-center-3.24.2") called at /usr/libdata/perl5/OpenBSD/Dependencies.pm line 713
OpenBSD::Dependencies::Solver::register_dependencies(OpenBSD::Dependencies::Solver=HASH(0x101bb0881d60), OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/PkgAdd.pm line 839
OpenBSD::PkgAdd::really_add(OpenBSD::UpdateSet=HASH(0x101bc645fc88), OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/PkgAdd.pm line 1033
OpenBSD::PkgAdd::process_set("OpenBSD::PkgAdd", OpenBSD::UpdateSet=HASH(0x101bc645fc88), OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 127
OpenBSD::AddDelete::process_setlist("OpenBSD::PkgAdd", OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/PkgAdd.pm line 1170
OpenBSD::PkgAdd::main("OpenBSD::PkgAdd", OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 50
eval {...} called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 50
OpenBSD::AddDelete::do_the_main_work("OpenBSD::PkgAdd", OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 64
OpenBSD::AddDelete::__ANON__ called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 87
OpenBSD::AddDelete::__ANON__ called at /usr/libdata/perl5/OpenBSD/Error.pm line 175
eval {...} called at /usr/libdata/perl5/OpenBSD/Error.pm line 175
OpenBSD::Error::try(CODE(0x101c5b1cdfd0), OpenBSD::Error::catch=CODE(0x101bc0455040)) called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 95
OpenBSD::AddDelete::framework("OpenBSD::PkgAdd", OpenBSD::PkgAdd::State=HASH(0x101c36b80340)) called at /usr/libdata/perl5/OpenBSD/AddDelete.pm line 108
OpenBSD::AddDelete::parse_and_run("OpenBSD::PkgAdd", "pkg_add") called at /usr/sbin/pkg_add line 30
main::run("pkg_add", "PkgAdd") called at /usr/sbin/pkg_add line 46

[Marc Espie]

Post by Martin Pieuchot
I'm always getting errors, I don't know how to help. I'm just a stupid
user of 'pkg_add -u' on a current machine.
OpenBSD 6.1-current (GENERIC.MP) #52: Sun May 7 14:56:02 MDT 2017
cat /etc/installurl
https://ftp.fr.openbsd.org/pub/OpenBSD
Fatal error: can't parse OpenBSD::RequiredBy: writing /var/db/pkg/gnome-desktop-3.24.1/+REQUIRED_BY: No such file or directory at /usr/libdata/perl5/OpenBSD/RequiredBy.pm line 30.

It's just the most evasive bug... the most frustrating part about it is
that it's not even easily reproduceable.

I haven't been able to figure out where it happens, it's definitely
something in the dependency caching or the tracker module, but so far
I don't know where (and believe me, I've looked!)

Work-around is to run pkg_check right after and rerun pkg_add.