相关疑难解决方法(0)

计算机在一个窗口中给了我这个输出：

E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_natty_main_binary-i386_Packages
E: The package lists or status file could not be parsed or opened.

我怎样才能解决这个问题？