weird error in ubuntu

[JlCollins005]

i get this error when trying to do thingz like update E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

 

[_simon_]

You need to do exactly what it says.

Open terminal and type

sudo dpkg --configure -a

You're not using Gutsy Gibbon Testing by any chance are you? dpkg was broken yesterday but it's fixed now.