pkg broken on FreeBSD-12: "Newer FreeBSD version for package py27-sphinxcontrib-websupport"

[Alan Somers]

On Thu, Feb 22, 2018 at 8:39 AM, Alan Somers <asomers at freebsd.org> wrote:

> I have two FreeBSD 12-CURRENT amd64 systems that both refuse to install
> any new packages.  "pkg update -f" doesn't help.  When I try, I get a
> confusing error like this.
>
> $ sudo pkg update -f
> Updating FreeBSD repository catalogue...
> Fetching meta.txz: 100%    944 B   0.9kB/s    00:01
> Fetching packagesite.txz: 100%    6 MiB   3.0MB/s    00:02
> Processing entries:   0%
> pkg: Newer FreeBSD version for package py27-sphinxcontrib-websupport:
> - package: 1200058
> - running kernel: 1200056
> pkg: repository FreeBSD contains packages for wrong OS version:
> FreeBSD:12:amd64
> Processing entries: 100%
> Unable to update repository FreeBSD
> Error updating repositories
>
> It's confusing because:
> a) My running kernel actually is 1200058, as shown by "uname -K"
> b) I don't have py27-sphinxcontrib-websupport installed, so what is it
> complaining about?
>
> Does anybody know what's going on?
>
> -Alan
>

Nevermind.  I found the workaround here.  I still don't know why the error
message mentions "sphinxcontrib-websupport", though.
https://lists.freebsd.org/pipermail/freebsd-current/2018-February/068615.html