Hi, I wonder if this message is really useful. I see this typically for large shapes, the last example from Thorsten has two identical large shapes (the island Rügen) http://www.openstreetmap.org/browse/relation/54400 The message is printed because area.getEstimatedSizes() returns values that are higher than some limits. The problem: area.getEstimatedSizes() ignores the filters which are used to reduce the number of points, so the error message may be printed without any reason. I think it would be better to do something like this: oldPos = buffer.getPosition() add the shape bytes = buffer.getPosition() - oldPos; if (bytes > LIMIT) { print error message } This would also allow to report the name of the shape that is probably corrupted. Of course, the same can be done for ways or node. What do you think? Gerd -- View this message in context: http://gis.19327.n5.nabble.com/Why-do-we-have-the-Area-too-small-to-split-at... Sent from the Mkgmap Development mailing list archive at Nabble.com.