I have problems when i import a kml file.
I work with SU Pro 2018.
In first, i load a terrain location from the SU tool (terrain from DigitalGlobe).
When i import a kml file, i have this dialog box “The model does not contain a Google Earth terrain. Do you want to import one first ?”
I can click on yes or no, it don’t work.
The KML file is not made with google earth.
I tried to export several simple kml files (with a polygon or a point) from many soft like QGIS or illustrator with mapublisher plugin.
I had always the same dialog box.
I’ll assume you mean a .kmz file, not .kml. A .kmz file is a zipped archive that may contain both native kml 3D geometric elements and a collada file of a 3D model. Depending on the source, either of these model datasets may be missing. SketchUp can import the file only if it contains the collada portion; SketchUp does not process native kml elements.