ubuntuでUnmentの依存関係を解決する

問題の紹介##

# apt install libcurl3
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 virtualbox-6.0: Depends:libfontconfig1(>=2.11.94) but it is not going to be installed
     Depends: libgl1-mesa-glx but it is not going to be installed or
       libgl1
     Depends:libice6(>=1:1.0.0) but it is not going to be installed
     Depends:libopus0(>=1.1) but it is not going to be installed
     Depends: libsdl1.2debian(>=1.2.11) but it is not going to be installed
     Depends: libsm6 but it is not going to be installed
     Depends:libvpx3(>=1.5.0) but it is not going to be installed
     Depends: libx11-xcb1 but it is not going to be installed
     Depends:libxcursor1(>1.1.2) but it is not going to be installed
     Depends: libxmu6 but it is not going to be installed
     Depends: libxrender1 but it is not going to be installed
     Depends: libxt6 but it is not going to be installed
     Recommends: libasound2
     Recommends: libpulse0 but it is not going to be installed
     Recommends: libsdl-ttf2.0-0 but it is not going to be installed
     Recommends: gcc but it is not going to be installed
     Recommends: make or
        build-essential but it is not going to be installed or
        dpkg-dev but it is not going to be installed
     Recommends: binutils but it is not going to be installed
     Recommends: pdf-viewer
     Recommends: libgl1
E: Unmet dependencies. Try 'apt-get -f install'with no packages(or specify a solution).

この問題の理由は、たとえばUbuntuでは、Ubuntu 14.04または16.04は通常、依存関係が壊れていたり、依存関係が満たされていないようには見えないためですが、dpkgを使用して特定のdebパッケージを強制的にインストールする場合、またはbuild-depにあるかどうか一部のパッケージのファイルとバージョンを手動で変更する場合、apt-get installまたはbuild-depを使用してパッケージを再インストールすると、上記の問題が発生する可能性があります。

解決＃＃

プロンプトに従ってコマンドを実行できます。問題が変わらない場合は、コマンドを実行しようとします。

first step

sudo apt-get-f install
sudo apt-get update
sudo apt-get upgrade

second step

sudo apt-get update
sudo apt-get clean
sudo apt-get autoremove

third step

sudo apt --fix-broken install
sudo apt-get update && sudo apt-get upgrade
sudo dpkg --configure -a
sudo apt-get install -f

上記の手順を実行すると、基本的に問題は解決できます