Dear maxiangying,

you have imported a lot of data into OSM in China, but the data is broken: Your buildings do not have the required “building” tag, and instead they have other tags like “x”, “y”, and “height” with long floating point numbers. Your roads have tags like “unknown1” and “unknown2” but no road tags, and so on. This import is going to be removed again.

The next time you want to import something into OSM, please follow the guidelines (osm.wiki/Import/Guidelines) which also include a requirement to discuss your plans with the community before you act; the idea behind this is that the community can then help you to avoid errors like this, and make the project successful.

Thank you Frederik