Problem installing updates

[SavageHenry]

Hi, I ran the update manager this morning and received the following error message,

E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

I am completely new to ubuntu and linux in general and have no idea how to fix this, if anyone can help please and thanks.

[ajgreeny]

Open a terminal and run
sudo dpkg --configure -a as the error message says, then
sudo apt-get update and finally
sudo apt-get upgrade