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I have ppa:cr3/ppa in my sources list. It upgrades my checkbox, checkbox-gtk, and checkbox-qt packages to version 0.14~ppa6.12.04. And now I have problems with updating my system, and sometimes critical system errors.

I tried to use ppa-purge to downgrade them - it didn't work. I tried to delete them from synaptic - it wants to delete ubuntu-desktop with them.

When I try to update system I'm getting an error:

E: Sub-process /usr/bin/dpkg returned an error code (1)

How can I solve this problem?

share|improve this question
Deleting ubuntu-desktop shouldn't be a problem. We can reinstall them later on.. It's a meta package at best. – jokerdino Jun 13 '12 at 7:47
I recommend adding the output of ppa-purge to your question. (You can run it again to get the error output, if you no longer have it up.) – Eliah Kagan Jun 13 '12 at 7:51
I can't do it... to much of characters.... – Simplehuman Jun 15 '12 at 10:00

You should be able to force version for those packages, setting them to use the official repository one doing a click on each of them in synaptic, then package menu -> force version...

Once you set them back, feel free to remove third party repos and upgrade safely.

share|improve this answer
Thank you for your answer. For checkbox-gtk and checkbox-qt it works. But checkbox is remaining 0.14~ppa6 :( I am getting the same error message. – Simplehuman Jun 15 '12 at 9:50
checkbox version in official 12.04 repos is 0.13.7. Try forcing it manually with sudo apt-get install checkbox=0.13.7 – jasmines Jun 15 '12 at 9:58
I have purged all of them with ubuntu-desktop package ... And just install them again . Everything is working, thank you. – Simplehuman Jun 15 '12 at 10:26
You're welcome! Don't forget to accept the answer :) – jasmines Jun 15 '12 at 11:06
HA! he forgot to accept the answer – blade19899 Nov 29 '13 at 15:45

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