Dtyjlui

Edited out of the question and added as an answer.

1. Make sure that your PPA is set up.



2. 
   

   Remove the broken package via the following command:

   
   
   

   sudo dpkg --remove --force-remove-reinstreq zramswap-enabler
   
   

   
   


3. 
   

   Install the package again:

   
   
   

   sudo apt-get install zramswap-enabler
   
   

   
   



4. After restart (not necessary), you are able to install the updates correctly!

Actually you can fix any "Package is in a very bad inconsistent state” issues with this solution!

This worked for me after pretty much scouring the whole of AskUbuntu and Ubuntu forums! (Source). I'm running Lubuntu 14.04

sudo mv /var/lib/dpkg/info/<packagename>.* /tmp/

sudo dpkg --remove --force-remove-reinstreq <packagename>

sudo apt-get remove <packagename>

sudo apt-get autoremove && sudo apt-get autoclean

I had a situation worse than this. I had to remove the half-installed packages by forcing dependencies.

sudo dpkg --remove --force-remove-reinstreq --force-depends <package-name>

Then I had to reinstall them

sudo apt-get -f install

That should solve any issue. But please make sure you have network connectivity when you try to do this. Otherwise, you will have to go through even more trouble.

The other answers are correct to mention a package removal followed by apt-get install -f to reinstall the broken package (and fully install other half-installed packages). However, this can be done in one step:

sudo apt-get install -f --reinstall zramswap-enabler

i'd try cleaning the status of my installation before resorting to uninstalling whatever created the problem:

apt-get autoclean

apt-get update

apt-get upgrade

apt-get install -f

much better way to solve this in most cases and in at least one instance had helped me when the other way wouldn't work (because huge dependencies on the package to be removed)

I had similar problem with quagga, the routing daemon. Just reinstaling the package worked for me:

# apt-get install -f  

<some output ommited>

dpkg: warning: overriding problem because --force enabled:

Package is in a very bad inconsistent state - you should

reinstall it before attempting a removal.



wget http://security.debian.org/debian-security/pool/updates/main/q/quagga/quagga_0.99.22.4-1+wheezy3_i386.deb

dpkg -i quagga_0.99.22.4-1+wheezy3_i386.deb

Now its ok again:

#apt-get install -f

Reading package lists... Done

Building dependency tree

Reading state information... Done

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

The same thing happened to me when I got disconnected from the internet while downloading 'wireshark' package. After that when I tried to reinstall it, it threw the same error 'package is in a very bad inconsistent state'. I've tried all the commands to install, purge, remove and reinstall but nothing worked.
After a little bit of googling, I stumbled upon a command

sudo dpkg -i --force-overwrite /var/cache/apt/archives/libwireshark8_2.2.6+g32dac6a-2ubuntu0.16.04_amd64.deb

(change libwireshark8_2.2.6+g32dac6a-2ubuntu0.16.04_amd64.deb with whatever package is creating problem, in the directory /var/cache/apt/archives/).

After all the issues were resolved. I removed the package again using

sudo apt --purge remove libwireshark8:amd64
sudo apt autoremove to fully remove the package.

After that, I installed wireshark again using: sudo apt-get install wireshark.

Everything works smoothly now!

Rferences:
How To Solve ”Sub process usr bin dpkg returned an error code 1″ Error?
Fix dpkg error