[ubuntu] ubuntu i386 (32bit) install package problem

Code:

sudo apt-get install git gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown libxml2-utils xsltproc zlib1g-dev:i386

Code:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
zip is already the newest version.
curl is already the newest version.
curl set to manually installed.
gnupg is already the newest version.
libc6-dev is already the newest version.
libc6-dev set to manually installed.
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:
 build-essential : Depends: dpkg-dev (>= 1.13.5) but it is not going to be installed
 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
 libgl1-mesa-glx:i386 : Depends: libglapi-mesa:i386 (= 10.1.3-0ubuntu0.6)
                        Recommends: libgl1-mesa-dri:i386 (>= 7.2)
 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
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.