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I get this error when I use apt-get upgrade & apt-get autoremove and on every apt-get [Something].. and when I try to install applications too:

Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)
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Solved by executing this command: sudo dpkg-reconfigure -phigh -a Thank you. –  R9TySix Feb 15 '12 at 18:09

6 Answers 6

Simple and working i tried it !!

sudo -s
cd /var/cache/debconf
rm *.dat
apt-get update && apt-get upgrade

Enjoy ;)

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I think this might lead to issues as it contains various config files. –  Pravesh Jain Feb 23 at 13:13

No solution mentioned in the answers worked for me and I tried a solution mentioned here by executing the following command

sudo dpkg -i --force-all [deb file path]

and that worked.

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What is [deb file path] ? –  GreenAsJade Mar 27 '14 at 0:04
That is the path of .deb file –  Ravindra Gullapalli Mar 27 '14 at 9:56
Thanks for replying, and sorry for my ignorance. I had this problem, and I don't know what .deb file you are referring to (I solved the problem using the "delete *.dat" file approach below, but I didn't like that much (like, whoa, this seems hacky) –  GreenAsJade Mar 27 '14 at 10:13
I strongly will not recommend to use the --force key unless a user fully understands what he is doing. Such options exist only for situations where the user knows that the error will not lead to any serious problems, one must not use it carelessly –  user907860 Jan 8 at 10:34

community wiki answer - solved by OP

This problem was resolved by running the following terminal command:

sudo dpkg-reconfigure -phigh -a
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You have to run those commands with sudo preceding them so they can be executed with super user credentials Example:

sudo apt-get autoremove "NAME OF PACKAGE HERE"
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i run sudo -s when i first start terminal. –  R9TySix Feb 15 '12 at 18:01
sudo dpkg-reconfigure -phigh -a this solved the problem Thanks –  R9TySix Feb 15 '12 at 18:10

The following worked for me too:

sudo mkdir /var/cache/debconf

I had a cleaning script running like the following:

sudo apt-get -y update
sudo apt-get -y upgrade
sudo apt-get -y dist-upgrade
sudo apt-get -y autoremove
cd /var/cache
rm -R *
cd /root/.cache
rm -R *
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If you have deleted /var/cache in a misguided attempt to clean up (like I did), this might fix the issue (it did for me):

sudo mkdir /var/cache/debconf
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