If Aperture Exporter (AE) experiences a forced quit or abnormal termination, recovery is possible through its resume mode. However, abnormal termination may result in an incomplete folder. To enable proper recovery, you should identify and remove the last folder AE was exporting.

There are two methods to identify the last folder AE was working on:

Method 1: Using Terminal

Navigate to the export destination folder and execute:

find . -type d -ls

This command lists all folders and displays their creation dates, allowing you to identify the most recent one.

Method 2: Checking System Logs

Open Console.app and select "All Messages" to view system logs. Search the filter for "Aperture." Look for the latest line reading "Operating on Container xxxx" — this indicates the last folder AE was processing.

Console showing Operating on Container message in system logs

Once identified, delete the folder to signal AE's resume mode to re-export it.

For more details, see: Resume Mode.