krnekhelesh@nik90-lenovo-ubuntu:~$ sudo apt-get install qt
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libupstart1 linux-headers-3.13.0-48 linux-headers-3.13.0-48-generic
  linux-headers-3.13.0-49 linux-headers-3.13.0-49-generic
  linux-image-3.13.0-48-generic linux-image-3.13.0-49-generic
  linux-image-extra-3.13.0-48-generic linux-image-extra-3.13.0-49-generic
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
  qt
0 upgraded, 1 newly installed, 0 to remove and 49 not upgraded.
Need to get 64.1 MB of archives.
After this operation, 263 MB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/canonical-qt5-edgers/qt5-beta-proper/ubuntu/ trusty/main qt amd64 5.4.1-0ubuntu1-0trusty21 [64.1 MB]
Fetched 64.1 MB in 56s (1,137 kB/s)                                            
Selecting previously unselected package qt:amd64.
(Reading database ... 1192336 files and directories currently installed.)
Preparing to unpack .../qt_5.4.1-0ubuntu1-0trusty21_amd64.deb ...
Unpacking qt:amd64 (5.4.1-0ubuntu1-0trusty21) ...
dpkg: error processing archive /var/cache/apt/archives/qt_5.4.1-0ubuntu1-0trusty21_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/ubuntu-ui-toolkit/examples/unit-converter/conversion.js', which is also in package ubuntu-ui-toolkit-examples 0.1.46+14.10.20140520-0ubuntu1~0trusty2
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/qt_5.4.1-0ubuntu1-0trusty21_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)