誤ってgcc私のシステム（Ubuntu 14.04）からパッケージを削除したようです。これで、システムに何もインストールできません。以下は私が試したときのサンプル出力ですapt-get -f install。助けてください！
root@ko-buntu:~/Downloads# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... failed.
The following packages have unmet dependencies:
arduino-core : Depends: gcc but it is not installable
build-essential : Depends: gcc (>= 4:4.4.3) but it is not installable
devscripts:i386 : Depends: perl:i386 but it is not installable
Depends: python3:i386 but it is not installable
Recommends: at:i386 but it is not installable
Recommends: dctrl-tools:i386 but it is not installable
Recommends: dput:i386 but it is not installable or
dupload:i386 but it is not installable
Recommends: libdistro-info-perl:i386 but it is not installable
Recommends: libencode-locale-perl:i386 but it is not installable
Recommends: libjson-perl:i386 but it is not installable
Recommends: libparse-debcontrol-perl:i386 but it is not installable
Recommends: liburi-perl:i386 but it is not installable
Recommends: libwww-perl:i386 but it is not installable
Recommends: python3-debian:i386 (>= 0.1.15) but it is not installable
Recommends: python3-magic:i386 but it is not installable
Recommends: strace:i386 but it is not installable
Recommends: wdiff:i386 but it is not installable
dpkg-dev : Depends: binutils but it is not installable
Recommends: gcc but it is not installable or
c-compiler
g++ : Depends: gcc (>= 4:4.8.2-1ubuntu6) but it is not installable
Depends: gcc-4.8 (>= 4.8.2-5~) but it is not installable
g++-4.8 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
Depends: gcc-4.8 (= 4.8.4-2ubuntu1~14.04) but it is not installable
gcc:i386 : Depends: cpp:i386 (>= 4:4.8.2-1ubuntu6) but it is not installable
gcc-4.8:i386 : Depends: cpp-4.8:i386 (= 4.8.2-19ubuntu1) but it is not installable
Depends: libgcc-4.8-dev:i386 (= 4.8.2-19ubuntu1) but it is not installable
gcc-4.9-base : Breaks: gcc-4.9-base:i386 (!= 4.9-20140406-0ubuntu1) but 4.9.1-0ubuntu1 is installed
gcc-4.9-base:i386 : Breaks: gcc-4.9-base (!= 4.9.1-0ubuntu1) but 4.9-20140406-0ubuntu1 is installed
hardening-includes : Depends: binutils but it is not installable
libasan0 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libatomic1 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libcodeblocks0 : Depends: binutils (>= 2.14.90.0.7) but it is not installable
libgcc-4.8-dev : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libgcc1:i386 : Depends: gcc-4.9-base:i386 (= 4.9-20140406-0ubuntu1) but 4.9.1-0ubuntu1 is installed
libgomp1 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libitm1 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libquadmath0 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libstdc++-4.8-dev : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libstdc++6 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
libtool : Depends: gcc but it is not installable or
c-compiler
Recommends: libltdl-dev but it is not installable
libtsan0 : Depends: gcc-4.8-base (= 4.8.4-2ubuntu1~14.04) but 4.8.2-19ubuntu1 is installed
lintian : Depends: binutils but it is not installable
pptp-linux : Depends: binutils but it is not installable
sa-compile : Depends: gcc but it is not installable
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies
root@ko-buntu:~/Downloads#
答え1
i386問題を引き起こすさまざまなパッケージを削除する必要があります。
apt-get purge devscripts:i386 gcc:i386 gcc-4.8:i386 gcc-4.9-base:i386 libgcc1:i386