sens interdit dans ubuntu 15.04

Depuis que j'ai voulu rajouter des greffons obtionnels de Dolphin
J'ai un sens interdit dans la barre du haut, et un message d'érreur repétitif qui dit :

dpkg: error processing archive /var/cache/apt/archives/kde-config-telepathy-accounts_15.04.1-0ubuntu1~ubuntu15.04~ppa1_i386.deb (--unpack):
 trying to overwrite '/usr/share/accounts/services/google-im.service', which is also in package account-plugin-google 0.12+15.04.20150415.1-0ubuntu2
Errors were encountered while processing:
 /var/cache/apt/archives/kde-config-telepathy-accounts_15.04.1-0ubuntu1~ubuntu15.04~ppa1_i386.deb
dpkg: dependency problems prevent configuration of kde-telepathy-minimal:
 kde-telepathy-minimal depends on kde-config-telepathy-accounts (>= 15.04.0); however:
  Package kde-config-telepathy-accounts is not installed.

dpkg: error processing package kde-telepathy-minimal (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of kde-telepathy:
 kde-telepathy depends on kde-telepathy-minimal (= 15.04.0-0ubuntu1~ubuntu15.04~ppa2); however:
  Package kde-telepathy-minimal is not configured yet.

dpkg: error processing package kde-telepathy (--configure):
 dependency problems - leaving unconfigured

Je suis nouveau et perdu...