I use OpenStreetMap Carto in Tilemill in order to export mbtiles for a small town. I managed to setup everything according to the installation guide. However, when I open the OpenStreetMap Carto project in Tilemill I only get a blue background which is set by Map {background-color: @water-color;} in style.mss. Other than that there is no rendered map to be seen. I checked my database in QGIS and there it looks ok. Since I'm very new to this, I've no idea where to look for the problem. Any suggestions?

PS: I had a problem similar to this one: Error with TileMill and OpenStreetMap Carto project, and was able to resolve it by the suggested solutions the result being that the errors didn't show up but I ended up with the map showing only its blue background.

1 Answer 1


This could be caused by your style.mss

Do you have more than that what you described in your style.mss

Try using one of the example styles such as https://github.com/mapbox/tilemill/blob/master/examples/geography-class/style.mss

  • 1
    Thank you for the hint. It worked with another example style. This helped me figure out the original problem which is - I think - that my database is only defined for zoom levels above 7. At the same time project.mml was centered on 0, 0 so that I didn't zoom in on the rendered map (a small part of Germany far away from 0, 0).
    – Jobiwan
    Commented Oct 4, 2015 at 13:20

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