I have an old shapefile with polygon features added to my map in ArcGIS pro and I encounter several problems, which I think (hope) are all due to the fact that the file has no coordinate system. (I did not make the file myself, always bit tricky)
Anyway I tried to fix this, by going to map properties > coordinate systems, but I seem to only be able to change the coordinate system for the entire map and not just for the layer. Is there a possibility to add a coordinate system specifically to the layer? I tried through the layer properties too, but that did not work out either.
Just to be clear: the data is projected as the other layers in the map, so no problem there, but when trying to edit the layer / delete some features in it, I always receive the message: 'Delete Selected Features failed. The selection contains no editable features. - No edits producing database changes were found." It is still possible that I am doing something wrong - still bit clumsy in ArcGIS I am afraid...