Map will not upload to project

I have followed the instructions on adding a place to a project - I’ve made the map in Google maps but when I go to upload the kml file I get an error message saying that there is nothing in the file. Has anyone come across this issue?

Can you paste the file here? The iNat uploader tends to be pickier about KMLs. Although it’s possible you saved the KML without a polygon. I’ve seen that happen before.

Yes that is what I did! It appeared to be a polygon but I had not clicked the starting point so it was still a series of lines.