In a fresh install of Ubuntu 16.04 beta 2, "sudo aptitude install kubuntu-default-settings-trinity kubuntu-desktop-trinity" says there are lots of unresolved dependencies.

Steps to reproduce:
===================

1. Install Ubuntu 16.06 beta 2 desktop.

2. Add trinity's repos acording to 
https://wiki.trinitydesktop.org/Preliminary_Stable_Builds

3. Update the whole system.
sudo apt-get update && apt-get upgrade

4. Reboot (just for safety)

5. Install this key into apt, according to https://wiki.trinitydesktop.org/UbuntuInstall#For_Xenial_.28Ubuntu_16.04.29

sudo apt-key adv --keyserver keyserver.quickbuild.pearsoncomputing.net --recv-keys F5CFC95C

6. Install aptitude (it doesn't come with the base install).
sudo apt-get install aptitude

7. Update.
sudo aptitude update

8. (Try to) install.
sudo aptitude install kubuntu-default-settings-trinity kubuntu-desktop-trinity

This last command returns:

dvadell@ubuntu16-04-tde:~$ sudo aptitude install kubuntu-default-settings-trinity kubuntu-desktop-trinity
The following NEW packages will be installed:
  acpi{a} adept-batch-trinity{a} adept-common-trinity{a} 
  adept-installer-trinity{a} adept-manager-trinity{a} 
  adept-notifier-trinity{a} adept-trinity{a} adept-updater-trinity{a} 
  akregator-trinity{a} amarok-common-trinity{a} 
  amarok-engine-xine-trinity{a} amarok-trinity{ab} ark-trinity{a} 
  arts-trinity{a} bluetooth{a} bogofilter{a} bogofilter-bdb{a} 
  bogofilter-common{a} bsd-mailx{a} cdparanoia{a} cdrdao{a} cryptsetup{a} 
  cryptsetup-bin{a} crystalcursors{a} cups-pdf{a} debtags{a} 
  desktop-effects-tde-trinity{a} digikam-trinity{a} dirmngr{a} dmsetup{a} 
  docbook-xml{a} dvd+rw-tools{a} enscript{a} fonts-arabeyes{a} 
  fonts-arphic-ukai{a} fonts-arphic-uming{a} fonts-lato{a} 
  fonts-unfonts-core{a} foomatic-db-engine{a} foomatic-db-gutenprint{a} 
  fortune-mod{a} fortunes-min{a} freeglut3{a} gpgsm{a} growisofs{a} 
  gtk-qt-engine-trinity{a} gtk2-engines-qtcurve{a} 
  gtk3-tqt-engine-trinity{a} gwenview-trinity{a} hpijs-ppds{a} htdig{a} 
  i965-va-driver{a} ijsgutenprint{a} javascript-common{a} 
  k3b-data-trinity{a} k3b-trinity{a} kaddressbook-trinity{a} 
  kaffeine-trinity{a} kamera-trinity{a} karm-trinity{a} katapult-trinity{a} 
  kate-trinity{a} kbstate-trinity{a} kcontrol-trinity{a} kcron-trinity{a} 
  kdbusnotification-trinity{a} kde-style-qtcurve-qt4{a} 
  kde-style-qtcurve-qt5{a} kdesktop-trinity{a} keep-trinity{a} 
  kfind-trinity{a} kghostview-trinity{a} khelpcenter-trinity{a} 
  kicker-trinity{a} kipi-plugins-trinity{a} klipper-trinity{a} 
  kmag-trinity{a} kmail-trinity{a} kmailcvt-trinity{a} kmenuedit-trinity{a} 
  kmilo-trinity{a} kmix-trinity{a} kmousetool-trinity{a} 
  kmplayer-base-trinity{a} kmplayer-konq-plugins-trinity{a} 
  knetworkconf-trinity{a} knode-trinity{a} knotes-trinity{a} 
  konq-plugins-trinity{a} konqueror-nsplugins-trinity{a} 
  konqueror-trinity{a} konsole-trinity{a} kontact-trinity{a} 
  konversation-trinity{a} kooka-trinity{a} kopete-trinity{a} 
  korganizer-trinity{a} kpdf-trinity{a} kpersonalizer-trinity{a} 
  kpf-trinity{a} kppp-trinity{a} krdc-trinity{a} kregexpeditor-trinity{a} 
  krfb-trinity{a} ksmserver-trinity{a} ksnapshot-trinity{a} 
  ksplash-engine-moodin-trinity{a} ksplash-trinity{a} ksvg-trinity{a} 
  ksysguard-trinity{a} ksysguardd-trinity{a} ksystemlog-trinity{a} 
  ktorrent-trinity{a} kubuntu-default-settings-trinity 
  kubuntu-desktop-trinity{b} kvkbd-trinity{a} kwayland-data{a} 
  kwayland-integration{a} landscape-client{a} landscape-common{a} lftp{a} 
  libaacs0{a} libakode2{a} libarts1-akode-trinity{a} libarts1c2a-trinity{a} 
  libartsc0-trinity{a} libaudiofile1{a} libavahi-tqt-1{a} 
  libavcodec-ffmpeg56{a} libavformat-ffmpeg56{a} libavutil-ffmpeg54{a} 
  libbdplus0{a} libbluray1{a} libcairo-perl{a} libcaldav{a} libcarddav{a} 
  libconfig9{a} libcrystalhd3{a} libdbus-1-tqt{a} libdbus-tqt-1-1c2{a} 
  libdirectfb-1.2-9{a} libdvdnav4{a} libdvdread4{a} libept0-trinity{a} 
  libept1.5.0{a} libfaad2{a} libfam0{a} libflac++6v5{a} libgadu3{a} 
  libglib-perl{a} libgme0{a} libgraphicsmagick-q16-3{a} libgsl2{a} 
  libgsm1{a} libgssglue1{a} libgtk2-perl{a} libifp4{a} libindex0-trinity{a} 
  libiso9660-8{a} libjpeg-progs{a} libjpeg9{a} libjs-jquery{a} 
  libjs-sphinxdoc{a} libjs-underscore{a} libk3b3-extracodecs-trinity{a} 
  libk3b3-trinity{a} libkcddb1-trinity{a} libkdcraw3-trinity{a} 
  libkexiv2-3-trinity{a} libkf5archive5{a} libkf5attica5{a} 
  libkf5auth-data{a} libkf5auth5{a} libkf5bookmarks-data{a} 
  libkf5bookmarks5{a} libkf5codecs-data{a} libkf5codecs5{a} 
  libkf5completion-data{a} libkf5completion5{a} libkf5config-bin{a} 
  libkf5config-data{a} libkf5configcore5{a} libkf5configgui5{a} 
  libkf5configwidgets-data{a} libkf5configwidgets5{a} 
  libkf5coreaddons-data{a} libkf5coreaddons5{a} libkf5crash5{a} 
  libkf5dbusaddons-bin{a} libkf5dbusaddons-data{a} libkf5dbusaddons5{a} 
  libkf5globalaccel-bin{a} libkf5globalaccel-data{a} libkf5globalaccel5{a} 
  libkf5globalaccelprivate5{a} libkf5guiaddons5{a} libkf5i18n-data{a} 
  libkf5i18n5{a} libkf5iconthemes-bin{a} libkf5iconthemes-data{a} 
  libkf5iconthemes5{a} libkf5idletime5{a} libkf5itemviews-data{a} 
  libkf5itemviews5{a} libkf5jobwidgets-data{a} libkf5jobwidgets5{a} 
  libkf5kdelibs4support-data{a} libkf5kdelibs4support5{a} 
  libkf5kdelibs4support5-bin{a} libkf5kiocore5{a} libkf5kiofilewidgets5{a} 
  libkf5kiowidgets5{a} libkf5notifications-data{a} libkf5notifications5{a} 
  libkf5parts-data{a} libkf5parts-plugins{a} libkf5parts5{a} 
  libkf5service-bin{a} libkf5service-data{a} libkf5service5{a} 
  libkf5solid5{a} libkf5solid5-data{a} libkf5sonnet5-data{a} 
  libkf5sonnetcore5{a} libkf5sonnetui5{a} libkf5textwidgets-data{a} 
  libkf5textwidgets5{a} libkf5waylandclient5{a} libkf5widgetsaddons-data{a} 
  libkf5widgetsaddons5{a} libkf5windowsystem-data{a} libkf5windowsystem5{a} 
  libkf5xmlgui-bin{a} libkf5xmlgui-data{a} libkf5xmlgui5{a} 
  libkipi0-trinity{a} libkleopatra1-trinity{a} libkmime2-trinity{a} 
  libkonq4-trinity{a} libkpimexchange1-trinity{a} 
  libkpimidentities1-trinity{a} libkscan1-trinity{a} libksieve0-trinity{a} 
  libktnef1-trinity{a} liblcms1{a} liblockfile-bin{a} liblockfile1{a} 
  libmad0{a} libmeanwhile1{a} libmimelib1c2a-trinity{a} libmodplug1{a} 
  libmp3lame0{a} libmp4v2-2{a} libmpcdec6{a} libmpg123-0{a} 
  libmysqlclient18{a} libnjb5{a} libnpth0{a} libopenal-data{a} 
  libopenal1{a} libopenjpeg5{a} libpango-perl{a} libperl4-corelibs-perl{a} 
  libphonon4qt5-4{a} libpolkit-qt5-1-1{a} libpoppler-tqt{ab} 
  libpostproc-ffmpeg53{a} libpq5{a} libprotobuf-c1{a} libqt4-designer{a} 
  libqt4-help{a} libqt4-opengl{a} libqt4-scripttools{a} libqt4-svg{a} 
  libqt4-test{a} libqt5script5{a} libqt5waylandclient5{a} 
  libqt5x11extras5{a} libqtassistantclient4{a} libqtcurve-utils2{a} 
  libqtwebkit4{a} libr0{a} librarian0{a} librecode0{a} librsync1{a} 
  libruby2.3{a} libschroedinger-1.0-0{a} libscim8v5{a} libsdl1.2debian{a} 
  libshine3{a} libslp1{a} libsmoketqt1-trinity{a} libsnappy1v5{a} 
  libsoxr0{a} libssh-gcrypt-4{a} libstreamanalyzer0v5{a} libstreams0v5{a} 
  libswresample-ffmpeg1{a} libtdepim1a-trinity{a} libtqt-perl{a} 
  libtqt3-mt{a} libtqtinterface{a} libtwolame0{a} libuniconf4.6{a} 
  libva-glx1{a} libva-x11-1{a} libva1{a} libvcdinfo0{a} libvdpau1{a} 
  libvoikko1{a} libwvstreams4.6-base{a} libwvstreams4.6-extras{a} 
  libx264-148{a} libx265-79{a} libxcb-xv0{a} libxine2{a} libxine2-bin{a} 
  libxine2-doc{a} libxine2-ffmpeg{a} libxine2-misc-plugins{a} 
  libxine2-plugins{a} libxine2-x{a} libxvidcore4{a} libzvbi-common{a} 
  libzvbi0{a} lockfile-progs{a} mesa-vdpau-drivers{a} mpg123{a} 
  mysql-common{a} ncompress{a} ocrad{a} p7zip-full{a} pinentry-qt{a} 
  poster{a} postfix{a} powermanagement-interface{a} 
  printer-driver-cups-pdf{a} printer-driver-hpijs{a} procmail{a} psutils{a} 
  python-apt{a} python-attr{a} python-cffi-backend{a} python-configobj{a} 
  python-crypto{a} python-cryptography{a} python-enum34{a} python-gdbm{a} 
  python-idna{a} python-ipaddress{a} python-ldb{a} python-openssl{a} 
  python-pam{a} python-pkg-resources{a} python-pyasn1{a} 
  python-pyasn1-modules{a} python-pycurl{a} python-pylibacl{a} 
  python-pyxattr{a} python-qt4{a} python-samba{a} python-serial{a} 
  python-service-identity{a} python-sip{a} python-six{a} python-tdb{a} 
  python-twisted-bin{a} python-twisted-core{a} python-twisted-web{a} 
  python-zope.interface{a} qt4-tqt-theme-engine{a} qtwayland5{a} rake{a} 
  rarian-compat{a} rdesktop{a} rdiff-backup{a} reboot-notifier{ab} ruby{a} 
  ruby-did-you-mean{a} ruby-minitest{a} ruby-net-telnet{a} 
  ruby-power-assert{a} ruby-test-unit{a} ruby2.3{a} rubygems-integration{a} 
  samba-common{a} samba-common-bin{a} scim-im-agent{a} 
  scim-modules-socket{a} screen{a} sgml-data{a} smbclient{a} 
  sonnet-plugins{a} speedcrunch{a} splix{a} strigi-daemon{a} 
  sudo-trinity{a} synaptic{a} synaptic-trinity{a} 
  tde-style-qtcurve-trinity{a} tde-systemsettings-trinity{a} 
  tde-ubuntu-integration{a} tdeadmin-tdefile-plugins-trinity{a} 
  tdebase-data-trinity{a} tdebase-runtime-data-common-trinity{a} 
  tdebase-tdeio-plugins-trinity{a} tdebase-trinity-bin{a} 
  tdednssd-trinity{a} tdegraphics-tdefile-plugins-trinity{a} 
  tdeio-apt-trinity{a} tdeio-locate-trinity{a} 
  tdeio-umountwrapper-trinity{a} tdelibs-data-trinity{a} 
  tdelibs14-trinity{a} tdemultimedia-tdefile-plugins-trinity{a} 
  tdemultimedia-tdeio-plugins-trinity{a} tdenetwork-filesharing-trinity{a} 
  tdenetwork-tdefile-plugins-trinity{a} tdepasswd-trinity{a} 
  tdepim-tdeio-plugins-trinity{a} tdepim-tderesources-trinity{a} 
  tdepim-wizards-trinity{a} tdepowersave-trinity{a} tdeprint-trinity{a} 
  tdescreensaver-trinity{a} tdescreensaver-xsavers-trinity{a} 
  tdesudo-trinity{a} tdewalletmanager-trinity{a} tdm-trinity{a} 
  tdmtheme-trinity{a} tqca-tls{a} twin-style-crystal-trinity{a} 
  twin-trinity{a} unison{a} va-driver-all{a} vdpau-driver-all{a} 
  vdpau-va-driver{a} vorbis-tools{a} wodim{a} wvdial{a} xbase-clients{a} 
  xscreensaver-data{a} xscreensaver-gl{a} zoo{a} 
The following packages will be REMOVED:
  libpth20{u} 
The following packages will be upgraded:
  gnupg-agent gnupg2 libart-2.0-2 
3 packages upgraded, 444 newly installed, 1 to remove and 21 not upgraded.
Need to get 247 MB of archives. After unpacking 1.105 MB will be used.
The following packages have unmet dependencies:
 reboot-notifier : Conflicts: update-notifier-common but 3.168 is installed.
 libpoppler-tqt : Depends: libpoppler57 (>= 0.38.0) which is a virtual package and is not provided by any available package.

 amarok-trinity : Depends: libruby2.2 (>= 2.2.0~1) which is a virtual package and is not provided by any available package.

 kubuntu-desktop-trinity : Depends: cups-driver-gutenprint which is a virtual package and is not provided by any available package.

The following actions will resolve these dependencies:

      Remove the following packages:                                            
1)      ubuntu-desktop                                                          
2)      ubuntu-release-upgrader-gtk                                             
3)      update-manager                                                          
4)      update-notifier                                                         
5)      update-notifier-common                                                  

      Keep the following packages at their current version:                     
6)      adept-notifier-trinity [Not Installed]                                  
7)      adept-trinity [Not Installed]                                           
8)      amarok-trinity [Not Installed]                                          
9)      kubuntu-desktop-trinity [Not Installed]                                 
10)     libpoppler-tqt [Not Installed]                                          
11)     tdegraphics-tdefile-plugins-trinity [Not Installed]                     

      Leave the following dependencies unresolved:                              
12)     apport-gtk recommends update-notifier                                   
13)     amarok-common-trinity recommends amarok-trinity (>= 4:14.0.4~pre0-0ubunt
14)     amarok-engine-xine-trinity recommends amarok-trinity (= 4:14.0.4~pre0-0u
15)     gwenview-trinity recommends tdegraphics-tdefile-plugins-trinity         
16)     kubuntu-desktop-trinity recommends amarok-trinity                       


Accept this solution? [Y/n/q/?] 

Expected result:
================

aptitude installing trinity.

Thanks,
 -- Diego.