1.啓動後在終端命令中敲tree命令,提示敲sudo apt-get install tree 執行後提示:ubuntu
正在讀取軟件包列表... 有錯誤!
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/cn.archive.ubuntu.com_ubuntu_dists_natty_main_binary-i386_Packages
E: 沒法解析或打開軟件包的列表或是狀態文件。get
解決辦法:it
sudo rm /var/lib/apt/lists/* -vf
sudo apt-get update(執行該條命令後須要等待幾分鐘後,才能安裝完);io
安裝完後再執行tree命令後,就能夠成功執行獲取樹形展現class