Error message: "Another application seems to be using the package system at this time." To my knowledge, this is the only software running on my system at this time. I was using the software to install KompoZer, but I also encountered the problem with Bluefish Editor. Note that I am currently running Kubuntu 12.04 Linux (OS Version Linux 3.2.0-32-generic-pae -KDE SC Version 4.8.2 (4.8.2) that was recently re-installed. Reproducible: Always Steps to Reproduce: 1. Open Muon Software Center 2. Click Developer Tools 3. Click Web Development 4. Click Kompozer 5. Install Actual Results: After a short wait, Error message appears in box: "Another application seems to be using the package system at this time." Expected Results: Installation of Kompozer software on system.
*** This bug has been marked as a duplicate of bug 284962 ***