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E: 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 > /dev/null;

 fi'

E: Sub-process returned an error code

sudo pkill -KILL appstreamcli

wget -P /tmp https://launchpad.net/ubuntu/+archive/primary/+files/appstream_0.9.4-1ubuntu1_amd64.deb https://launchpad.net/ubuntu/+archive/primary/+files/libappstream3_0.9.4-1ubuntu1_amd64.deb

sudo dpkg -i /tmp/appstream_0.9.4-1ubuntu1_amd64.deb /tmp/libappstream3_0.9.4-1ubuntu1_amd64.deb