ubuntu16.04 apt-get 异常

1. apt-get update：

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

解决办法：

$ 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

2. apt-get install：

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

解决办法：

$ sudo rm /var/cache/apt/archives/lock
$ sudo rm /var/lib/dpkg/lock