Ubuntu - không thể sửa gói bị hỏng

Tôi đang cố gắng cài đặt Skype trên Ubuntu 12, x64. nhưng nó không hoạt động. Khi tôi cố gắng sửa các gói bị hỏng, tôi gặp phải các lỗi sau:

$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  skype:i386
The following packages will be upgraded:
  skype:i386
1 upgraded, 0 newly installed, 0 to remove and 269 not upgraded.
1 not fully installed or removed.
Need to get 0 B/15.4 kB of archives.
After this operation, 36.7 MB disk space will be freed.
Do you want to continue [Y/n]? Y
dpkg: dependency problems prevent configuration of skype:i386:
 skype-bin:i386 (4.1.0.20.0-0ubuntu0.12.04.2) breaks skype (<< 4.1.0.20.0-0ubuntu0.12.04.1) and is installed.
  Version of skype:i386 to be configured is 4.1.0.20-1.
dpkg: error processing skype:i386 (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 skype:i386
E: Sub-process /usr/bin/dpkg returned an error code (1

Hãy đề nghị những gì tôi nên làm để khắc phục vấn đề này.