Unable to upload CityGML file

I’m trying to upload a .gml file containing streets described by lines, defined as objects like to following:

image

Why Cesium can not read such a file?

Hi,

Are you unable to upload the asset to ion because the UI will prevent it or are you seeing errors associated with your upload? If it is the later can you please provide me with the asset id for the failure that you are seeing?

Thanks,
Ankit

Hi,
I see errors during the upload. The error is the following:
image

The asset id:2279034
Can you find the problem nature? Thank you!

Hi,

This asset seems to have failed because our tiling pipeline was unable to find any features in the asset to tile. The ion tiling pipeline currently only supports models and meshes in CityGML. In this instance your asset seems to contain a LineString object which is isn’t currently supported by tiling pipeline causing the error you are seeing.

Thanks,
Ankit

Thank you very much for the answer!