Cannot calculate a route[Classic]

[randomdude345]

I'm trying to calculate a route from my savemap(a town) to a dungeon.
The savemap is not morroc or related to morroc at all
This dungeon is reached through a NPC.

However whenever my bot tries to calculate a route i get this message

Cannot calculate a route from *town(x, y)* to *dun(,)*.

This happens no matter where in the town i am, even standing next to the NPC.

I checked my portals.txt and it has the correct cooridinates for the NPC.
I tried emptying portalsLOS.txt and recompile it. Still same error.
I tried rebuilding the .fld file for the town, no cigar.
The NPC is not in an unwalkable area(besides the fact that you can't move on top of him, the tile below him is highlighted just like any other walkable tile)

Right now I'm out of ideas. Any tips?