# 錯誤總結 > 1、`Could not get lock /var/lib/dpkg/lock` ``` apt-get update E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? ``` **解決：** * 找到并且殺掉所有的apt-get 和apt進程：`ps -A | grep apt` * 殺掉該進程 ``` $ sudo kill -9 processnumber 或者 $ sudo kill -SIGKILL processnumber ``` > 2、`sudo: add-apt-repository: command not found` 實際上 `add-apt-repository` 是由 `python-software-properties` 這個工具包提供的,所以安裝一下python-software-properties: ``` sudo apt-get install python-software-properties ``` 有可能解決完這一步就OK了,但是也不一定,這個不一定讓我也遇上了,執行 sudo add-apt-repository ppa:jonathonf/vim,發現還是提示sudo: ``` sudo: add-apt-repository: command not found ``` 那么再安裝一下 `software-properties-common`: ``` sudo apt-get install software-properties-common ```