我正在尝试使用 vmbuilder 设置 VM 网络。使用 Ubuntu 12.04 进行设置时没有问题。但是，在尝试任何较新的 LTS（14.04 或 16.04）时，当我尝试构建 KVM 时出现以下错误：
Configuration file '/etc/sudoers'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : start a shell to examine the situation …