当我尝试安装时ipython notebook-gtk2：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Errors were encountered while processing:
/var/cache/apt/archives/ipython_2.4.1-1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
我该如何修复这个问题并安装上述软件包？
total 4
-rw-r----- 1 root root 0 Jul 20 2016 lock
drwx------ 2 _apt root 4096 Mar 27 21:48 partial