I'm getting an error while build a tmx map using MonoGame Extended (see picture). By the looks of it, the importer can't find the tileset, which is weird.
- In my Map.tmx file the source for the tileset is ../Tilesets/Tileset.png. The tileset is placed in a Tilesets folder in the content pipeline, and the map lies in a Maps folder, so it should work, but it doesn't? I get the same error if I place the Tileset.png in the same folder as Map.tmx and change source to just Tileset.png.
Any ideas what's causing this and how to fix it?