我安装了 Ubuntu 12.04LTS 操作系统，但是当我添加带有软件包的新存储库时，发现此错误：
Unable to resolve the package dependencies
@electron 请求的信息：
sudo dpkg --configure -a
sudo apt-get install -f
Reading package lists ... Done
Building dependency tree
Reading state information ... Done
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
sudo apt-get update
E: The download of some index files failed, they have been ignored, or old ones were used instead.