Linked Questions

0
votes
1answer
43 views

What is GPG error?

When my update is complete I am getting an GPG error but I don't know what is GPG.Can someone explain me what is this error and why it has occurred? I know how to fix it but I want to know what is ...
1
vote
2answers
55 views

can't update recommended Updates

I can't update the system. The recommended Updates pops up with some updates but when I hit install it says"Requires installation of untrusted packages"(screen shot below ) and when I hit O.K it ...
0
votes
1answer
27 views

Error message W: GPG error [duplicate]

After updating my system as usual from the terminal it goes on fetching updates but at last it shows the following messages. What does it mean and how do I fix the red icon. Actually to fix the red ...
0
votes
0answers
11 views

I keep getting the GPG error, I've tried almost all the solutions but none are working in my case [duplicate]

W: GPG error: http://ubuntu.ntc.net.np utopic Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: ...
0
votes
0answers
24 views

Refreshing package list fails with “public key is not available” [duplicate]

This error comes when I try to run sudo apt-get update W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: ...
4
votes
1answer
1k views

GPG error, signatures public key not available TRIED A LOT

apt-get update returns : W: GPG error: http://pl.archive.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 ...
0
votes
1answer
131 views

Can't get rid of GPG-error: http://download.opensuse.org [duplicate]

I have been googling for hours trying to find a way to get rid of the annoying gpg-error referring to the link below. W: GPG error: http://download.opensuse.org Release: The following signatures ...
4
votes
1answer
8k views

GPG ERROR NO_PUBKEY : WARNING: The following packages cannot be authenticated! [closed]

I have just stared to receive some strange errors regarding GPG keys. Namely I have just added ppa:ubuntu-toolchain-r/test and wanted to update and after that I got this: W: GPG error: ...
0
votes
1answer
83 views

W: GPG error: message in my terminal

I get this msg in my terminal W: GPG error: https://download.01.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A902DDA375E52366 ...
2
votes
1answer
397 views

Public key is messing? [duplicate]

I get this error when I update the system: W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ...
0
votes
0answers
24 views

apt-get update does not work [duplicate]

My apt-get command does not work, I get following error: ~$ sudo apt-get update Ign http://security.ubuntu.com trusty-security InRelease Get:1 http://security.ubuntu.com trusty-security Release.gpg ...

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