Linked Questions

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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 ...
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18 views

updation problem all the solution given won't work for me [duplicate]

W: GPG error: http://extras.ubuntu.com precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192 W: GPG error: ...
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16 views

Failed to download repositary information [duplicate]

I open update manager and click check button for update , and popup box coming out and show Failed to download repositary informaion. pls someone help me , i want to update 12.04 to 13.04 , I'm using ...
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16 views

PGP public key reinstall Ubuntu 12:04 [duplicate]

I was installing the update Ubuntu 12.04 by terminal alert by following command: sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade when in the process had a ...
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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: ...
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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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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 ...
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2k 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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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 ...
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365 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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