Does The CSV Import require known GPS coordinates?

I am perplexed. I have filled out all the correct data but I continue to get the error of

3 / 3 item(s) could not be added due to blank/invalid address(city, region, country, latitude, longitude).

After reading through about a dozen pages I have found that this very simple sounding error seems to trigger a bunch of different problems with a file. I would expect that people do not go through the trouble of finding the lat and long before they upload their file. To me, the point of this software is to simplify the process and skip the need because it does a GPS lookup in the software and fills this info out. I could not find anyone addressing this directly so please let me know. I cannot see any other issues with the addresses. They are all in the single city that I have set as my main city.