Cant add gpx file in Xcode 9, I do all the steps but the file won't show up as a option in "simulate location"

First, start a new project and add the gpx files to verify that the process works as intended. Next, reopen your old project and try adding the gpx files one at a time. Also try adding by right clicking on one of your project folders in the File Navigator view. I had the same problem when trying to add the gpx files to an existing project and it appears to have gone away, once I follwed the steps outlined above.

I have the same problem. I have deleted and redownloaded Xcode, i have deleted the app but no matter what I do when I add the GPX it doesnt show up in the list.

1. If you know the long & lat values you can enter them directly into the simulator via the debug -> Location -> Custom Location menu ...

2. After or during addition of the gpx file to the project, remember to select the app target membership and the location icon should show in xcode the next time project is launched.