Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 gnome-control-center : Depends: libcheese-gtk23 (>= 3.4.0) but it is not going to be installed
                        Depends: libcheese7 (>= 3.0.1) but it is not going to be installed
 libgbm1 : Depends: libgl1-mesa-dri
 libubuntu-application-api-mirserver1 : Depends: libmirserver18 (>= 0.1.8+14.04.20140408.1) but it is not going to be installed
 libunity-mir1 : Depends: libmirserver18 (>= 0.1.8+14.04.20140411) but it is not going to be installed
 libwayland-egl1-mesa-lts-vivid : Depends: libegl1-mesa-lts-vivid (= 10.5.9-2ubuntu1~trusty2) but it is not going to be installed
 qtdeclarative5-accounts-plugin : Depends: qtdeclarative5-qtquick2-plugin but it is not going to be installed
 qtdeclarative5-qtfeedback-plugin : Depends: libqt5feedback5 but it is not going to be installed
 qtdeclarative5-ubuntu-ui-toolkit-plugin : Depends: libqt5svg5 but it is not going to be installed
                                           Depends: qtdeclarative5-qtquick2-plugin but it is not going to be installed
                                           Depends: qtdeclarative5-window-plugin but it is not going to be installed
 ubuntu-system-settings : Depends: qtdeclarative5-qtmultimedia-plugin but it is not going to be installed or
                                   qtdeclarative5-qtmultimedia-plugin-gles but it is not installable
                          Depends: qtdeclarative5-ubuntu-content0.1 but it is not going to be installed
 unity-control-center : Depends: libcheese-gtk23 (>= 3.4.0) but it is not going to be installed
                        Depends: libcheese7 (>= 3.0.1) but it is not going to be installed
 xserver-xorg-core-lts-vivid : Depends: libgbm1-lts-vivid (>= 8.1~0) but it is not going to be installed
                               Recommends: libgl1-mesa-dri-lts-vivid (>= 7.10.2-4) but it is not going to be installed
 xserver-xorg-lts-vivid : Recommends: libgl1-mesa-dri-lts-vivid but it is not going to be installed
                          Recommends: libgl1-mesa-glx-lts-vivid but it is not going to be installed
                          Recommends: libegl1-mesa-lts-vivid but it is not going to be installed
                          Recommends: libegl1-mesa-drivers-lts-vivid but it is not installable
                          Recommends: libgbm1-lts-vivid but it is not going to be installed
                          Recommends: libgles2-mesa-lts-vivid but it is not going to be installed
                          Recommends: libgles1-mesa-lts-vivid but it is not going to be installed
                          Conflicts: libegl1-mesa (>= 0~)
                          Conflicts: libgl1-mesa-dri:i386 (>= 0~)
                          Conflicts: libgl1-mesa-glx (>= 0~)
                          Conflicts: libgl1-mesa-glx:i386 (>= 0~)
                          Conflicts: libglapi-mesa (>= 0~)
                          Conflicts: libglapi-mesa:i386 (>= 0~)
                          Conflicts: libgles1-mesa (>= 0~)
                          Conflicts: libgles2-mesa (>= 0~)
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.