Linked Questions

0
votes
1answer
53 views

I'm getting a gpg error [duplicate]

I'm getting a gpg error: http://ppa.launchpad.net precise Release: the following signatures couldn't be verified because the public key is not available : NO_PUBKEY 5A9A06AEF9C8DB0 This came ...
0
votes
0answers
63 views

How to solve the problems in “sudo apt-get update” [duplicate]

Here is my /etc/apt/source.list file. I get many problems in the output of sudo apt-get update: $ sudo apt-get update [sudo] password for tim: Err http://cran.cnr.Berkeley.edu precise/ Release.gpg ...
2
votes
2answers
58 views

Error authenticating some packages while upgrade

When I try to upgrade my ubuntu 13.04 to 13.10, it gives the following error: It was not possible to authenticate some packages. This may be a transient network problem. You may want to try again ...
0
votes
0answers
44 views

Cannot install Ubuntu SDK [duplicate]

I get the following error in terminal while installing the SDK W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not ...
-1
votes
1answer
41 views

error while apt update [duplicate]

W: GPG error: http://deb.opera.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E585066A30C18A2B W: Duplicate sources.list entry ...
0
votes
0answers
30 views

Could not run sudo apt-get update [duplicate]

Every time I run sudo apt-get update, I get this error: W: GPG error: https://download.01.org Ubuntu Release: The following signatures couldn't be verified because the public key is not available: ...
0
votes
0answers
27 views

Another problem with updating Ubuntu [duplicate]

I am trying to update my OS and I get the following message error: W:GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is ...
2
votes
0answers
25 views

Spotify update error message stops updates from occurring [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? After todays update, I restarted my system and got this message: When I check for updates it says that there are ...
0
votes
0answers
20 views

Can't update or install software [duplicate]

I'm am brand new to Ubuntu. I cannot update software or download software such as Wine. I get a message that says Failed to download repository information. Check internet connection. But I have an ...
0
votes
0answers
11 views

Update manager error public keys (?) [duplicate]

I keep getting this error when I run update manager: W:GPG error: http://extras.ubuntu.com quantal Release: The following signatures couldn't be verified because the public key is not available: ...
0
votes
0answers
7 views

update_problems_in_Ubuntu [duplicate]

I have Ubuntu 12.04. While updating, I get the following error: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not ...

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