0010618: Fish trappers stuck in place when there are no fishable tiles available

Notes
(0037898) PatrikLundell (reporter) 2018-03-13 01:20	As far as I can see all water sources are frozen over, so there's nowhere to place the trap. Presumably the fisherdwarf would start moving when it thaws... Thus, it seems to be a matter of not cancelling the task when it can't be performed, rather than a failure to path to a non existent destination (which I think is a job handling bug, but not a pathing one). Since you've provided no info on the jeweler I can provide no insight into what may have cause that incident. A couple of further notes for the future: - You don't need the whole "save" folder, only the "regionX" folder for the save in question. - Don't use the proprietary 7Zip compression format, but rather a standard one such as zip (which I believe can be produced by 7Zip).

(0037899) George_Chickens (reporter) 2018-03-13 01:27	I should have specified, I have an internal pool that is full of unfrozen water and fish. It's the only place marked as a fishing zone, and it's on one of the underground levels closer to the surface.

(0037900) George_Chickens (reporter) 2018-03-13 01:32	Additionally, dwarves have comfortably fished from it before, and fish are visible in it the time of the save. So it's not an issue of no fish or an inaccessible location. It just seems as though upon entering that hallway to the workshop, dwarves will randomly glitch out. For future reference, the fishing pool is just one level underground.

(0037906) George_Chickens (reporter) 2018-03-13 06:05	Upon starting the pond, I remember seeing 119 eligible fishing zones. Somewhere, somehow, this has gone down to 0. Maybe a problem with the fresh water source being attached to a frozen lake?

(0037916) Loci (manager) 2018-03-13 10:18	Thank you for the save! As far as I'm concerned, 7z compression is fine. Dead jewelers usually result from impassible workshop tiles, and indeed your jeweler's corpse is still blocked in by the jeweler's workshop you ordered him build in front of the door back to the fortress. Fish trappers do not immediately cancel their job when no fishable tiles are available (0002149). Additionally, visible fish does not indicate fishable tiles (0008217). Zone water-adjacent tiles are initially assumed to be fishable, but are reclassified unfishable once fishing fails. Also, Standing Orders -> Zones controls whether dwarves prefer or are required to fish in fishing zones (yours was set to "prefer").

Issue History
Date Modified	Username	Field	Change
2018-03-13 00:53	George_Chickens	New Issue
2018-03-13 01:20	PatrikLundell	Note Added: 0037898
2018-03-13 01:27	George_Chickens	Note Added: 0037899
2018-03-13 01:32	George_Chickens	Note Added: 0037900
2018-03-13 06:05	George_Chickens	Note Added: 0037906
2018-03-13 10:18	Loci	Note Added: 0037916
2018-03-13 10:18	Loci	Assigned To	=> Loci
2018-03-13 10:18	Loci	Severity	major => minor
2018-03-13 10:18	Loci	Status	new => assigned
2018-03-13 10:18	Loci	Category	Dwarf Mode -- Transport/Hauling => Dwarf Mode -- Jobs, Trapping
2018-03-13 10:18	Loci	Summary	Lethal pathfinding problem occasionally causes dwarves to starve or be unable to complete their jobs. => Fish trappers stuck in place when there are no fishable tiles available
2018-03-13 10:19	Loci	Relationship added	duplicate of 0002149
2018-03-13 10:19	Loci	Status	assigned => resolved
2018-03-13 10:19	Loci	Resolution	open => duplicate