This is how I reproduced it:
1. apt-get install wine (I have chosen this because pulling the library packages should take some time)
2. Open the Ubuntu Software Store and choose to install some application (I took amule). It should be queued in the list telling that it is waiting for another process to finish (apt-get).
3. When the download of the packages for the wine installation has finished the error occured in Ubuntu Software Store.
4. At the same time dpkg failed in the terminal (the wine installation) with:
dpkg: Status database section is locked by another process. (Translated from german).
I can confirm this error.
Seems to be some kind of race condition.
This is how I reproduced it:
1. apt-get install wine (I have chosen this because pulling the library packages should take some time)
2. Open the Ubuntu Software Store and choose to install some application (I took amule). It should be queued in the list telling that it is waiting for another process to finish (apt-get).
3. When the download of the packages for the wine installation has finished the error occured in Ubuntu Software Store.
4. At the same time dpkg failed in the terminal (the wine installation) with:
dpkg: Status database section is locked by another process. (Translated from german).