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Both printers aren't working anymore since my last update yesterday.

A internal error reporting box fires up, when I try to add another printer under system settings. Here is some info:

  • Executable Path: /usr/lib/x86_64-linux-gnu/cups-pk-helper-mechanism
  • Package: cups-pk-helper 0.2.5-2ubuntu2

  • ProblemType: Crash

    cups-pk-helper-mechanism crashed with signal 5 in g_variant_new_va()

Found this: https://bugs.launchpad.net/ubuntu/+source/cups-pk-helper/+bug/1565170

This is the error firefox-printer dialogue shows:

What can I do?

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closed as off-topic by user68186, Kevin Bowen, Charles Green, Eric Carvalho, David Foerster Oct 14 '17 at 9:41

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – user68186, Kevin Bowen, Charles Green, Eric Carvalho, David Foerster
If this question can be reworded to fit the rules in the help center, please edit the question.
    
My best guess based on the limited information you have provided is that something is awry with /usr/lib/x86_64-linux-gnu/cups-pk-helper-mechanism or one of it's configuration files. Have you tried removing and reinstalling the package? What have you tried? – Elder Geek Oct 12 '17 at 20:34
    
I'd need a routine for this. I only did run the weekly ubuntu update and it's not working anymore since this. – empedokles Oct 12 '17 at 21:34
    
cd /usr/lib/x86_64-linux-gnu/cups-pk-helper-mechanism -> bash: cd: /usr/lib/x86_64-linux-gnu/cups-pk-helper-mechanism: Is not a directory – empedokles Oct 12 '17 at 21:44
1  
bugs.launchpad.net/ubuntu/+source/cups-pk-helper/+bug/156517‌​0 – empedokles Oct 12 '17 at 21:51
    
Good find. Subscribe to the bug so that you can be notified when it's squashed. Meanwhile you may want to askubuntu.com/questions/138284/… Previous releases of cups-pk-helper can be found here – Elder Geek Oct 12 '17 at 22:54
up vote 2 down vote

Unless you truly need the fine grain priveleges that cups-pk-helper provides, you might try simply removing the package with sudo apt-get remove cups-pk-helper if that fails, you can purge the package where packagename is cups-pk-helper

You might also take a look at this related post.

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I tried both (remove and purge), but I still receive the same error under firefox-printing (see screenshot above). I also got the same exclamation mark under printer settings on the specific printer. – empedokles Oct 13 '17 at 7:53
    
Turned out, cups wasn't installed anymore and has been removed with my deinstallation of imagemagick without asking back. – empedokles Oct 13 '17 at 9:23

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