I upgraded to 11.10 and lost power during the upgrade. After bringing the box back up, I attempted to continue the upgrade and at one point did a partial upgrade to resolved dependency issues that I thought at the time were related to may failed upgrade. Now I have a working system for the most part. The problem is I can not install the 'acroread' package anymore because of dependency errors:

~ $ sudo apt-get install acroread

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:



The following packages have unmet dependencies:

 acroread : Depends: nspluginwrapper but it is not going to be installed

E: Unable to correct problems, you have held broken packages.



~ $ sudo apt-get install nspluginwrapper



Reading package lists... Done

Building dependency tree       

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:



The following packages have unmet dependencies:

 nspluginwrapper : Depends: nspluginviewer (= 1.4.4-0ubuntu3)

E: Unable to correct problems, you have held broken packages.



 ~ $ sudo apt-get install nspluginviewer

R

eading package lists... Done

Building dependency tree       

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:



The following packages have unmet dependencies:

 nspluginviewer:i386 : Depends: libgtk2.0-0:i386 (>= 2.8.0) but it is not going to be installed

E: Unable to correct problems, you have held broken packages.

I am running 64-bit but it seems acroread needs some 32-bit libraries that are not able to be installed. In my reading, I've found that there were some changes to multi-arch packages.

Does anyone know how I can repair my system to get around this problem?