sudo apt-get install build-essential libxcomposite-dev libpng12-dev libsm-dev libxrandr-dev libxdamage-dev libxinerama-dev libstartup-notification0-dev libgconf2-dev libgl1-mesa-dev libglu1-mesa-dev libmetacity-dev librsvg2-dev libdbus-1-dev libdbus-glib-1-dev libgnome-desktop-dev libgnome-window-settings-dev gitweb curl autoconf automake automake1.9 libtool intltool libxslt1-dev xsltproc libwnck-dev python-dev python-pyrex libx11-xcb-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
build-essential is already the newest version.
autoconf is already the newest version.
autoconf set to manually installed.
automake is already the newest version.
intltool is already the newest version.
intltool set to manually installed.
xsltproc is already the newest version.
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:
libgl1-mesa-dev: Depends: mesa-common-dev (= 7.0.3~rc2-1ubuntu3) but it is not going to be installed
libgnome-desktop-dev: Depends: libgnomeui-dev (>= 2.14.1-1) but it is not going to be installed
libmetacity-dev: Depends: libgtk2.0-dev (>= 2.10.0-1) but it is not going to be installed
librsvg2-dev: Depends: libcairo2-dev (>= 1.2.0) but it is not going to be installed
Depends: libgtk2.0-dev (>= 2.10.1-1) but it is not going to be installed
libstartup-notification0-dev: Depends: libx11-dev but it is not going to be installed
libwnck-dev: Depends: libgtk2.0-dev (>= 2.8.17-1) but it is not going to be installed
Depends: libxres-dev but it is not going to be installed
libx11-xcb-dev: Depends: libx11-dev but it is not going to be installed
libxcomposite-dev: Depends: libx11-dev but it is not going to be installed
Depends: libxfixes-dev but it is not going to be installed
libxdamage-dev: Depends: libx11-dev but it is not going to be installed
Depends: libxfixes-dev but it is not going to be installed
libxinerama-dev: Depends: libx11-dev but it is not going to be installed
Depends: libxext-dev but it is not going to be installed
libxrandr-dev: Depends: libxrandr2 (= 2:1.2.2-1) but 2:1.2.3-1 is to be installed
Depends: libx11-dev but it is not going to be installed
Depends: libxext-dev but it is not going to be installed
Depends: libxrender-dev but it is not going to be installed
E: Broken packages