vinicius@rpcti115:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 ia32-libs-multiarch:i386 : Depends: libqtcore4:i386 but it is not installed
 libqt4-dbus:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-declarative:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-designer:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-network:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-opengl:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-qt3support:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-script:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-scripttools:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-sql:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-sql-mysql:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-svg:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-test:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-xml:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqt4-xmlpatterns:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqtgui4:i386 : Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4.1) but it is not installed
 libqtwebkit4:i386 : Depends: libqtcore4:i386 (>= 4:4.8.0~) but it is not installed
E: Unmet dependencies. Try using -f.
vinicius@rpcti115:~$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  libqtcore4:i386
The following NEW packages will be installed:
  libqtcore4:i386
0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.
114 not fully installed or removed.
Need to get 0 B/2061 kB of archives.
After this operation, 9041 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
(Reading database ... 283916 files and directories currently installed.)
Unpacking libqtcore4:i386 (from .../libqtcore4_4%3a4.8.1-0ubuntu4.1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/libqtcore4_4%3a4.8.1-0ubuntu4.1_i386.deb (--unpack):
 conffile './etc/xdg/Trolltech.conf' is not in sync with other instances of the same package
Errors were encountered while processing:
 /var/cache/apt/archives/libqtcore4_4%3a4.8.1-0ubuntu4.1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)