<![CDATA[Error processing package opera-stable (Opera 54.0.2952.41)]]>Debian 9.4.0 (Stretch)
After updating Opera from the previous version, this error started to happen:

sudo apt-get upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] 
Setting up opera-stable (54.0.2952.41) ...
dpkg: error processing package opera-stable (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 opera-stable
E: Sub-process /usr/bin/dpkg returned an error code (1)

sudo apt --fix-broken upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] 
Setting up opera-stable (54.0.2952.41) ...
dpkg: error processing package opera-stable (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 opera-stable
E: Sub-process /usr/bin/dpkg returned an error code (1)

I did run apt-get autoremove, apt-get autoclean I also tried to remove and reinstall Opera but the same error still occur.

]]>https://forums.opera.com/topic/27439/error-processing-package-opera-stable-opera-54-0-2952-41RSS for NodeWed, 15 Jul 2026 04:21:27 GMTTue, 03 Jul 2018 11:19:57 GMT60<![CDATA[Reply to Error processing package opera-stable (Opera 54.0.2952.41) on Fri, 06 Jul 2018 21:44:56 GMT]]>Something I forgot, the last command will install Opera and ask you a question, select No because we already set that up, if you answer "Yes" it will mess up /etc/apt/sources.list.d/opera-stable.list

]]>https://forums.opera.com/post/149928https://forums.opera.com/post/149928Fri, 06 Jul 2018 21:44:56 GMT<![CDATA[Reply to Error processing package opera-stable (Opera 54.0.2952.41) on Fri, 06 Jul 2018 20:02:42 GMT]]>Fixing my own issue...
If you followed this instructions it will possible fail, the trusting part doesn't work with Debian 9.4.0 (Stretch), this is how I did.

  • Remove Opera with sudo apt-get --purge opera-stable, this will remove everything related with Opera but your home profile, that means that all your stuff are safe.
  • Get the Opera key with sudo gpg --keyserver sks-keyservers.net --recv-keys 0xD4CC85974C31396B18B36837D615560BA5C7FF72
  • Export the key with sudo gpg --export 0xD4CC85974C31396B18B36837D615560BA5C7FF72 >opera-stable.gpg
  • Add the Opera key with sudo apt-key add opera-stable.gpg If it returns any error, is possible that your /etc/apt/trusted.gpg is corrupted.
  • Recreate /etc/apt/sources.list.d/opera-stable.list with:
deb http://deb.opera.com/opera-stable/ stable non-free
  • Update apt with apt-get update && apt-get upgrade there should be no error.
sudo apt-get update
Hit:1 http://security.debian.org/debian-security stretch/updates InRelease
Hit:2 http://apt.llvm.org/stretch llvm-toolchain-stretch-5.0 InRelease         
Hit:3 http://apt.llvm.org/stretch llvm-toolchain-stretch-6.0 InRelease         
Hit:4 http://deb.opera.com/opera-stable stable InRelease                       
Ign:5 http://ftp.br.debian.org/debian stretch InRelease
Hit:6 http://ftp.br.debian.org/debian stretch-updates InRelease
Hit:7 http://ftp.br.debian.org/debian stretch Release
Reading package lists... Done
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  • Reinstall with sudo apt-get install opera-stable

That's it, no more dpkg error.

]]>https://forums.opera.com/post/149921https://forums.opera.com/post/149921Fri, 06 Jul 2018 20:02:42 GMT<![CDATA[Reply to Error processing package opera-stable (Opera 54.0.2952.41) on Fri, 06 Jul 2018 05:29:49 GMT]]>@jimunderscorep Yes, already tried that too.
There's no dependency missing, this is some apt script configuration error.

]]>https://forums.opera.com/post/149839https://forums.opera.com/post/149839Fri, 06 Jul 2018 05:29:49 GMT<![CDATA[Reply to Error processing package opera-stable (Opera 54.0.2952.41) on Wed, 04 Jul 2018 04:54:35 GMT]]>Have you tried
apt-get install -f
in case there is a missing dependency?

]]>https://forums.opera.com/post/149626https://forums.opera.com/post/149626Wed, 04 Jul 2018 04:54:35 GMT