پاسخ : پیغام Package dependencies cannot be resolved در هنگام نصب هر اپلیکیشن (حل شد)

vlc: Depends: vlc-nox (= 2.1.6-0ubuntu14.04.1) but 2.1.6-0ubuntu14.04.1 is to be installed
     Depends: libc6 (>= 2.15) but 2.19-0ubuntu6.6 is to be installed
     Depends: libfreetype6 (>= 2.2.1) but 2.5.2-1ubuntu2.5 is to be installed
     Depends: libgcc1 (>= 1:4.1.1) but 1:4.9.3-0ubuntu4 is to be installed
     Depends: libqtcore4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4.1 is to be installed
     Depends: libqtgui4 (>= 4:4.8.0) but 4:4.8.5+git192-g085f851+dfsg-2ubuntu4.1 is to be installed
     Depends: libsdl-image1.2 (>= 1.2.10) but it is not going to be installed
     Depends: libstdc++6 (>= 4.6) but 4.8.4-2ubuntu1~14.04 is to be installed
     Depends: libva-x11-1 (> 1.3.0~) but it is not going to be installed
     Depends: libva1 (> 1.3.0~) but it is not going to be installed
     Depends: libxcb-composite0 but it is not going to be installed
     Depends: libxcb-xv0 (>= 1.2) but it is not going to be installed
     Depends: zlib1g (>= 1:1.2.3.3) but 1:1.2.8.dfsg-1ubuntu1 is to be installed

ubuntu-restricted-extras: Depends: ubuntu-restricted-addons but it is not going to be installed