why does it say unreachable build when there is no unreachable build??

[ghostrider]

i tend to get these when i build the pipes and wires for a liquid pump and it butts up against the side of a retention pond. i'll try to post some screenies later

[Sorrowful Cat]

Ususally they need a ladder for something higher or further than ~4or 5 tiles. Also try reloading the save or making more space to manuver. Screenshots of specific circumstances will help.

[ghostrider]

the build location was literally under their feet. sigh

[ghostrider]

so they can go down the ladder into the pond and the build loc is the left wall that i'm replacing with a different material. i swear i will figure out how to screen this

[FDru]

It's kind of a known issue. As long as the task isn't grayed out they should still do it, but you might need to reload if it's being stubborn. Also there is some issues with doors and pathing to "airless" places that might prevent the dupes from getting there.

[ghostrider]

here we go

https://steamcommunity.com/sharedfiles/filedetails/?id=1403133393

[ghostrider]

and there you are

https://steamcommunity.com/sharedfiles/filedetails/?id=1403133133

[ghostrider]

i got around it by deconstructing the pump, then i could rebuild that wall

[Hoki]

that wall tile is one tile too far for the dupe to reach. the move task you have is about max how far the dupes can traverse in water.

to bypass this you need to have another task within those 8 tiles range so the pathfinding will set that spot as origin (and therefore adds another 8 tiles range from that spot).

deconstructing the pump was one awy to ypass the range. sinply using a move task would have the same effect

[ghostrider]

i couldn't move them anywhere past that point. cursor was red all the way to the wall

[ghostrider]

now that i think about it, i think it was the pipes in the wall i was trying to replace. i think dupes have a hard time rebuilding walls with pipes run through them

[Hoki]

8 submerged tiles is the ma dupes can walk under water. if you count in your first screenshot its 8 tiles away from the surfaced tiles with the ladder.

unless you have a dupe thats ending a task (like moving) in the water thats as far as you can go

[ghostrider]

lame. esp since rebuilding tiles that are underwater is...problematic. i will build a ladder going down that side next time i need to rebuild

[ErikRedbeard]

I just fill up the entire water basins with ladders now. Makes them not care that there's water.
Even if it is a huge tank they'll still go everywhere.