A human caravan just has entered and leaved my map, without even trying to get to my Trade Depot. No special announcements are issued at that time. I've checked Depot accessibility, and as you can see from the screenshot, it's perfectly accessible.
Here is my save file (for DF v0.34.03)
Have I done anything wrong? I don't want to lose the dwarven caravan arriving this autumn like this. There are so many crafts to be sold!
Depot accessible
also implies that. Please download my save file and check it yourself.boatmurdered
that it is possible for the caravan to spawn at another edge from which there is no such path. Make sure none of the map edges is blocked off, for example, by a river or canyon.