I can´t selection my city, Porto, Portugal for calculating PET. I insert my table with my data but in subject "Location Data" if I select Porto the programme give an error
Can you select other locations without an error thrown?
In that case maybe consider to open the locations.lst file next to your RayMan.exe file with a plain text editor (e.g. windows editor or notepad++) and check if the syntax for Porto is the same as for all the other entries! If you are unsure, please post the line for Porto together with the one above and the one below here in the forum, so I can check.