How do I fix a “Failed to download package files” error?

Question

After I installed Ubuntu , I cannot update any software with the error message "failed to download package files". After having googled, I have tried:

1. sudo apt-get update
2. sudo apt-get upgrade
3. changed to another sources

But I still got the same error message. And there is no problem with internet connection as i can connect to internet using Firefox in Ubuntu.

Any ideas?

Answer 1

Press ALT+F2 and type software-properties-gtk.

Change the download location to Main Server or another server close to the country you live in and try to sudo apt-get update again.

Answer 2

There's a Package Manager Troubleshooting Procedure that usually solves this sort of problem. Perform steps 1-4 of that procedure. (Step 1, which is sometimes enough, is what Bruno Pereira has posted--in better detail--in this answer. If step 1 isn't enough, continue with the other steps.)

If that doesn't solve the problem, then please select all the text in the Terminal (Edit > Select All), copy it to the clipboard (Edit > Copy), and edit your question to include it (you'll want to make it a blockquote so that the formatting doesn't get messed up). This will then provide highly useful information for solving the problem.

Answer 3

Possible issue, and solution:

[Solved] No network on Ubuntu guest after installing update

https://forums.virtualbox.org/viewtopic.php?f=3&t=41708