Apt Error at Update

[Stephen Allen <marathon.durandal@gmail.com>]

Hi Folks:

It's intermittent, after running apt (SID updated daily, for the past
several days). Anybody else?

Error:
Problem executing scripts APT::Update::Post-Invoke-Success 'if
/usr/bin/test -w /var/cache/app-info -a -e /usr/bin/appstreamcli; then
appstreamcli refresh-cache > /dev/null; fi'