Garbled code on apt-get update(Ubuntu)

yakuzakyuu

yakuzakyuu

I use latest Ubuntu LTS(24.04).
Every time I type apt-get update in Terminal, I get this as result. Is there way to fix this, and how?
I've tried Linux chat, but the problem is in Opera's end.

heta@heta-vaio:~$ sudo apt-get update
[sudo] password for heta: 
Hit:1 http://fi.archive.ubuntu.com/ubuntu noble InRelease
Get:2 http://fi.archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]     
Get:3 http://fi.archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]   
Get:4 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]      
Hit:5 https://deb.opera.com/opera-stable stable InRelease                      
Get:6 http://fi.archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [599 kB]
Get:7 https://esm.ubuntu.com/apps/ubuntu noble-apps-security InRelease [7 532 B]
Get:8 http://fi.archive.ubuntu.com/ubuntu noble-updates/main amd64 Components [114 kB]
Get:9 https://esm.ubuntu.com/apps/ubuntu noble-apps-updates InRelease [7 468 B]
Get:10 http://fi.archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Components [212 B]
Get:11 http://fi.archive.ubuntu.com/ubuntu noble-updates/universe i386 Packages [437 kB]
Get:12 http://fi.archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [709 kB]
Get:13 https://esm.ubuntu.com/infra/ubuntu noble-infra-security InRelease [7 462 B]
Get:14 https://esm.ubuntu.com/infra/ubuntu noble-infra-updates InRelease [7 461 B]
Get:15 http://fi.archive.ubuntu.com/ubuntu noble-updates/universe amd64 Components [306 kB]
Get:16 http://fi.archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Components [940 B]
Get:17 http://fi.archive.ubuntu.com/ubuntu noble-backports/main amd64 Components [208 B]
Get:18 http://fi.archive.ubuntu.com/ubuntu noble-backports/restricted amd64 Components [212 B]
Get:19 http://fi.archive.ubuntu.com/ubuntu noble-backports/universe amd64 Components [21,0 kB]
Get:20 http://fi.archive.ubuntu.com/ubuntu noble-backports/multiverse amd64 Components [212 B]
Get:21 http://security.ubuntu.com/ubuntu noble-security/main amd64 Components [7 188 B]
Get:22 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Components [212 B]
Get:23 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Components [51,9 kB]
Get:24 http://security.ubuntu.com/ubuntu noble-security/multiverse amd64 Components [212 B]
Fetched 2 656 kB in 2s (1 243 kB/s) 
Reading package lists... Done
W: Target Packages (non-free/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Packages (non-free/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11 (non-free/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11 (non-free/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11-icons-small (non-free/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11-icons-hidpi (non-free/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target CNF (non-free/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target CNF (non-free/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Packages (non-free/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Packages (non-free/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11 (non-free/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11 (non-free/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11-icons-small (non-free/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target DEP-11-icons-hidpi (non-free/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target CNF (non-free/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
W: Target CNF (non-free/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/opera-stable.list:4 and /etc/apt/sources.list.d/opera-stable.sources:1
N: Missing Signed-By in the sources.list(5) entry for 'https://deb.opera.com/opera-stable'
heta@heta-vaio:~$

styen

styen @yakuzakyuu

@yakuzakyuu remove /etc/apt/sources.list.d/opera-stable.sources

yakuzakyuu

yakuzakyuu @styen

@styen File doesn't seem to exist at all.

sorenfeodor

sorenfeodor @yakuzakyuu

@yakuzakyuu Please do not consider this to be an expert's answer:

When I google your "error message" I read that "N" is for "notice" and may be ignored. Still, it is annoying and I eventually end up here: https://www.digitalocean.com/community/questions/n-missing-signed-by-in-the-sources-list-5-entry-for-http-mirrors-digitalocean-com-ubuntu

Maybe try to see if that fixes it?