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• 执行 sudo apt-get update 报错:

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'

解决：

sudo pkill -KILL appstreamcliwget -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.debsudo dpkg -i /tmp/appstream_0.9.4-1ubuntu1_amd64.deb /tmp/libappstream3_0.9.4-1ubuntu1_amd64.deb

• 删除错误或者失效的包索引文件

  查找错误或者失效的包索引文件

sudo apt-get update |grep Failed

• 刷新ip

sudo dhclient -r

sudo dhclient

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