dpkg: error processing archive /var/cache/apt/archives/libkwinxrenderutils6_4%3a5.2.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/libkwinxrenderutils.so.6', which is also in package libkwinxrenderutils5 4:5.1.95-0ubuntu2
Selecting previously unselected package libkwineffects6.
Preparing to unpack .../libkwineffects6_4%3a5.2.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb ...
Unpacking libkwineffects6 (4:5.2.0-0ubuntu1~ubuntu15.04~ppa1) ...
dpkg: error processing archive /var/cache/apt/archives/libkwineffects6_4%3a5.2.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/libkwineffects.so.6', which is also in package libkwineffects5 4:5.1.95-0ubuntu2
Selecting previously unselected package libkwinglutils6.
Preparing to unpack .../libkwinglutils6_4%3a5.2.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb ...
Unpacking libkwinglutils6 (4:5.2.0-0ubuntu1~ubuntu15.04~ppa1) ...
dpkg: error processing archive /var/cache/apt/archives/libkwinglutils6_4%3a5.2.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/libkwinglutils.so.6', which is also in package libkwinglutils5 4:5.1.95-0ubuntu2