Installation Error, "Unable to lock the administration directory"

Posted by kern on Ask Ubuntu See other posts from Ask Ubuntu or by kern
Published on 2012-01-29T11:14:28Z Indexed on 2012/06/07 10:48 UTC
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Filed under:

installation

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software-center

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error

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dpkg

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lock

Whenever I try to install any software through Terminal or Software on my Ubuntu 11.04, I'm getting this response:

In Terminal:

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

In Software Center

An unhandlable error occured
There seems to be a programming error in aptdaemon, the software that allows you to install/remove software and to perform other package management related tasks.

What should I do?

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