apt-get 安裝沒有自動依賴

問題：

apt-get install 不能自動安裝依賴，安裝新的包時，提示Unmet dependencies問題。

$ sudo apt-get install subversion
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:
 subversion : Depends: libsvn1 (= 1.9.3-2ubuntu1.1) but it is not going to be installed
              Depends: libapr1 (>= 1.5.0) but it is not going to be installed
              Depends: libaprutil1 (>= 1.3.2+dfsg) but it is not going to be installed
...
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

原因：

某一個.deb包安裝是沒有完全安裝，或者 apt-get upgrde 時中斷

解決：

執行修復命令，並重新執行更新和升級，確保完整修復問題。

$ sudo apt --fix-broken install
$ sudo apt-get update
$ sudo apt-get upgrade