pgkde@pramiti-Latitude-E6500:~$ sudo apt-get install kdelibs5-dev
[sudo] password for pgkde:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libnepomukdatamanagement4 libkwinactiveglesutils1 libsolidcontrol4abi2
  language-pack-zh-hans libkscreensaver5 language-pack-kde-en libkephal4abi1
  language-pack-kde-zh-hans libplasma-geolocation-interface4
  language-pack-kde-en-base kde-l10n-engb libkwinactivenvidiahack4
  libprocessui4a libkwinactiveglutils1 libgles2-mesa libksgrd4
  libkwinnvidiahack4 libkdecorations4 libkwinglutils1 kde-l10n-zhcn
  libplasmagenericshell4 libkwinglesutils1 libkworkspace4abi1 libnepomuksync4
  libweather-ion6 language-pack-zh-hans-base libplasmaclock4abi3
  libksignalplotter4 firefox-locale-zh-hans liblsofui4 libattica0.3
  libsolidcontrolifaces4abi2 language-pack-kde-zh-hans-base
  libkwineffects1abi3 libkwinactiveeffects1abi3
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
  kdelibs5-dev
0 upgraded, 1 newly installed, 0 to remove and 50 not upgraded.
Need to get 0 B/1,473 kB of archives.
After this operation, 9,089 kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  kdelibs5-dev
Install these packages without verification [y/N]? y
(Reading database ... 233258 files and directories currently installed.)
Unpacking kdelibs5-dev (from .../kdelibs5-dev_4%3a4.12.3-0ubuntu1~ubuntu12.04.4~ppa1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/kdelibs5-dev_4%3a4.12.3-0ubuntu1~ubuntu12.04.4~ppa1_i386.deb (--unpack):
 trying to overwrite '/usr/bin/preparetips', which is also in package pkg-kde-tools 0.14.2ubuntu5
No apport report written because MaxReports is reached already
                                                              dpkg-deb (subprocess): subprocess data was killed by signal (Broken pipe)
dpkg-deb: error: subprocess <decompress> returned error exit status 2
Errors were encountered while processing:
 /var/cache/apt/archives/kdelibs5-dev_4%3a4.12.3-0ubuntu1~ubuntu12.04.4~ppa1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)