Hi.
I'm following the instructions here...
http://www.manageengine.com/products/opmanager/help/installation_guide/inst_linux.html

The first section lists a bunch of prerequisites. So, I started to install them.

The first one is xfree86.
So, I ran that command as follows...
sudo apt-get install xfree86

Then I got this message...

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?

I'm not sure what this means or what to do about it.
Can anyone help?

I don't want to mess anything up. So, I'm not going to move past this step until I get it figured out.   :)

Thanks.
steven