我尝试了一切 apt-get -f install 至 sudo apt-get purge linux-headers* 至 sudo purge-old-kernels 在下一个命令或任何命令之后似乎没有让我超过此错误 sudo apt-get install 命令：
sudo apt-get install php-curl php-gd php-mbstring php-mcrypt php-xml php-xmlrpc
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
linux-headers-generic : Depends: linux-headers-4.4.0-122-generic but it is not going to be installed
php-xmlrpc : Depends: php7.0-xmlrpc but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
我有这个版本的ubuntu：
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.4 LTS
Release: 16.04
Codename: xenial
另外，如果这有帮助：
sudo dpkg --configure -a
dpkg: dependency problems prevent configuration of linux-headers-generic:
linux-headers-generic depends on linux-headers-4.4.0-122-generic; however:
Package linux-headers-4.4.0-122-generic is not installed.
dpkg: error processing package linux-headers-generic (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-headers-virtual:
linux-headers-virtual depends on linux-headers-generic (= 4.4.0.122.128); however:
Package linux-headers-generic is not configured yet.
dpkg: error processing package linux-headers-virtual (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-virtual:
linux-virtual depends on linux-headers-virtual (= 4.4.0.122.128); however:
Package linux-headers-virtual is not configured yet.
dpkg: error processing package linux-virtual (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
linux-headers-generic
linux-headers-virtual
linux-virtual