E: Could not get lock /var/cache/apt/archives/lock (resource unavailable)

   

    Ubuntu安装软件的时候，出现：

E: Could not get lock /var/cache/apt/archives/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/cache/apt/archives/

   原因是目录被其他进程加上了锁。

   解决两方法：

       ①：查找相应进程，然后Kill他。

       ②：强制解锁
          sudo rm /var/cache/apt/archives/lock