Package: aptitude Version: 0.8.10-6 Severity: minor This used to work, but not anymore,
$ aptitude --simulate download php7.1-imap Executing 'apt --simulate download php7.1-imap' E: Command line option --simulate is not understood in combination with the other options E: Failed to execute: 'apt --simulate download php7.1-imap' E: The process or trying to execute it exited with status/errno: 100