PPA Launchpad GPG error

Asked by princegeorge on 2010-06-14

I get frequent following error on Ubuntu Studio 10.04 LTS.I hv attached
the screenshot

W: GPG error: http://ppa.launchpad.net lucid Release: The following
signatures couldn't be verified because the public key is not available:

1.At startup the screenshot 1 appears
2.on clicking Run this Action now.finally screenshot 2 appears

how can i permanently remove this pubkey i don't need this.

OS:Ubuntu Studio 10.04 with Linux 2.6.32-22-generic.

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This question was originally filed as bug #593514.

princegeorge (theprinceway) said : #1
princegeorge (theprinceway) said : #2
Leo Arias (elopio) said : #3

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs .

Open a Terminal from the menu Applications->Accessories->Terminal

Tip: right click with mouse on the terminal title caption and select the item "Always on Top" doing this you will force the terminal window to stay on top of the other windows and you will find very easy to copy single row from this web page into the terminal...
Something more about using the terminal https://help.ubuntu.com/community/UsingTheTerminal

Then type or better copy and paste a row a time then press enter:
(Tip: select the single row to copy then right click into the terminal and to quick paste click with middle button of mouse )

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys D0AFF96872D340A3

sudo apt-get update

sudo dpkg --configure -a
sudo apt-get -f install
sudo apt-get --fix-missing install
sudo apt-get clean
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get clean
sudo apt-get autoremove
sudo apt-get update

give your user password when requested, you don't see nothing when you type it, then press enter.

Hope this helps

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