I am having trouble installing any deb external packages with the software center.
After downloading and clicking on the deb file, the software center opens up but gives the error of failed after starting to install.
The system log reports this error after installation fails.
AptDaemon.Worker: WARNING: An additional step to open the cache is required
This has happened for all external packages for several days.
I can however install with the command line.
What is the problem with the software center?