我试图build立一个基于Ubuntu的容器镜像上安装了docker引擎。 这是我在我的dockerfile中：
FROM ubuntu:trusty MAINTAINER Ervin Varga RUN apt-get update RUN apt-get -y upgrade RUN apt-get install -y openssh-server RUN sed -i 's|session required pam_loginuid.so|session optional pam_loginuid.so|g' /etc/pam.d/sshd RUN mkdir -p /var/run/sshd RUN apt-get -y install openjdk-7-jre RUN apt-get -y install openjdk-7-jdk RUN adduser --quiet jenkins RUN echo "jenkins:jenkins" | chpasswd RUN apt-get -y install apt-transport-https ca-certificates curl software-properties-common aufs-tools cgroup-lite git apparmor RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - RUN add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable" RUN apt-add-repository 'deb https://apt.dockerproject.org/repo ubuntu-xenial main' RUN apt-get update RUN apt-get -y install docker-engine RUN sudo usermod -aG docker ${USER} RUN su - ${USER} EXPOSE 22 CMD ["/usr/sbin/sshd", "-D"]`enter code here` 当我来build立图像，我得到：
The following packages have unmet dependencies: docker-engine : Depends: init-system-helpers (>= 1.18~) but 1.14ubuntu1 is to be installed Depends: lsb-base (>= 4.1+Debian11ubuntu7) but 4.1+Debian11ubuntu6.2 is to be installed Depends: libdevmapper1.02.1 (>= 2:1.02.97) but 2:1.02.77-6ubuntu2 is to be installed Depends: libltdl7 (>= 2.4.6) but it is not going to be installed Depends: libsystemd0 but it is not installable E: Unable to correct problems, you have held broken packages. The command '/bin/sh -c apt-get -y install docker-engine' returned a non-zero code: 100
有人可以引导我在正确的方向，我怎样才能解决这个问题。