Linked Questions

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How do I fix the error below that I get when I try to update Ubuntu 11.10? [duplicate]

Possible Duplicate: How do I fix the GPG error “NO_PUBKEY”? This website wouldn't let me post the links so I replaced them with (LINK). Which is kind of stupid because I would ...
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19 views

Unity Player for Ubuntu 14.04 installation hiccup

I am trying to set up Unity player for mozilla, so I followed the these instructions. How to install unity web player on Ubuntu 14.04? However when I tried "sudo apt-get update" I get... W: GPG ...
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13 views

I cant Update my system via terminal [duplicate]

I cant Update my system via terminal, I receive his message: Reading package lists... Error! W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified ...
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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: ...
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26 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: ...
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253 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 ...
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3k views

GPG error while doing sudo apt-get update [duplicate]

W: GPG error: http://apt.newrelic.com newrelic Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B31B29E5548C16BF W: Failed to fetch ...
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26 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 ...
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591 views

Partial upgrade: problems authenticating packages [duplicate]

Possible Duplicate: What is the easiest way to resolve apt-get BADSIG GPG errors? How do I fix the GPG error “NO_PUBKEY”? What can I do when my update package manager throws ...

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