E: 無法獲得鎖 /var/lib/dpkg/lock-frontend - open (11: 資源暫時不可用)

今日使用Ubuntu系統的apt-get命令安裝系統時發現不可用，提示其他進程正在佔用

E: 無法獲得鎖 /var/lib/dpkg/lock-frontend - open (11: 資源暫時不可用)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
 

解決方案一

ps -e | grep apt 

然後執行：sudo kill 進程號 

解決方案二 

有一種情況是 

sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock

但我遇到的情況是：E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?  

sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock-frontend