I was testing a release upgrade today (from 14.04 to 15.04) and every package installation failure ended with - FileExistsError: [Errno 17] File exists: '/var/crash/$package.0.crash'.
I was testing a release upgrade today (from 14.04 to 15.04) and every package installation failure ended with - FileExistsError: [Errno 17] File exists: '/var/crash/ $package. 0.crash' .