如何在Ubuntu 11.04中安裝autoconf？

Question

當我試圖通過以下命令在Ubuntu 11.04安裝autoconf的

sudo apt-get install autoconf 

這個錯誤出現

Reading package lists... Done 
Building dependency tree  
Reading state information... Done 
Package autoconf is not available, but is referred to by another package. 
This may mean that the package is missing, has been obsoleted, or 
is only available from another source 

E: Package 'autoconf' has no installation candidate 

如何消除這種誤差和安裝呢？

Answer 1

它爲我工作。請確保您通過運行更新：

sudo apt-get update 

這可能是問題。

Answer 2

啓用軟件源選項卡中的複選框（在系統設置下）

Answer 3

如果有ufw活動。

sudo ufw disable 
sudo apt-get update 
sudo apt-get install autoconf 
sudo ufw enable