pkg will not upgrade

[James B. Byrne]

In a Freebsd-11.1p15 jail I am trying to upgrade the packages.  However

pkg upgrade
. . .
Installed packages to be REINSTALLED:
	tree-1.7.0 (option added: DOCS)
	lzop-1.04 (option added: DOCS)

Number of packages to be upgraded: 27
Number of packages to be reinstalled: 2

The process will require 2 MiB more space.
2 MiB to be downloaded.

Proceed with this action? [y/N]: y
[mx31.harte-lyne.ca] [1/3] Fetching clamav-0.100.2.txz: 100%    1 MiB 
 1.2MB/s    00:01
pkg: cached package clamav-0.100.2: size mismatch, fetching from remote
[mx31.harte-lyne.ca] [2/3] Fetching clamav-0.100.2.txz:   3%   48 KiB 
49.2kB/s    00:[mx31.harte-lyne.ca] [2/3] Fetching clamav-0.100.2.txz:
100%    1 MiB   1.2MB/s    00:01
pkg: cached package clamav-0.100.2: size mismatch, cannot continue

I have already cleared the cache.  What is going on?  If I try to
update pkg itself then I get a warning that the kernel required for
the update is higher than the one running the jail; so don't do that.

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James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
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