“Requires installation of unstrusted packages.” The second incident occurred when Ubuntu’s Update Manager attempted to install updates to the FreeFileSync package. Permanent deletion of such files suited my purposes admirably and changing the relevant option under the synchronization settings instantly resolved the issue. Use “delete permanently” or “custom directory” Instead of “recycle bin”. The solution was provided by ZenJu, the program’s developer, who suggested in response to another user’s query: Try another setting for “deletion handling” in synchronization options. The problem was that FreeFileSync was unable to delete one of the mis-matched files by sending it to the Trash Bin. (Glib Error Code 15, g-io-error-quark: Unable to find or create trash directory)

The first was the following error message received when attempting to synchronize two directories: When using – and updating – FreeFileSync, I experienced a couple of odd (to me at any rate) behaviours.

Zenju freefilesync