Uninstall Evolution, Install Thunderbird

[jdhudson]

When I try to remove Evolution Mail in the Software Center it just thinks and never begins to uninstall. When I try to force remove from Terminal it says:

"Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?"

I have looked everywhere I know of, being a new Linux user, trying to find where the process may still be running or being used from and I do not know where to go from here.

Any ideas? I know it's something simple, I'm just not familiar enough with it to find it yet.

Thanks!

[howefield]

Sounds like you are running two package managers at the same time. Close all bar one down and try removing again..

[jdhudson]

When I try to uninstall Evolution or install Thunderbird I get the attached message.

[jdhudson]

After performing some updates everything works now.