I am getting the following error message when testing the map matching a GPX file.
gps import took:0.12292803s, match took: 4.096E-5
2018-02-22 11:09:17,127 [main] ERROR com.graphhopper.matching.MapMatchingMain - Problem with file .\matching-core\src\test\resources\points.gpx Error: Too few coordinates in input file (0). Correct format?
What is the correct format for GPX file? I have a lot of data in csv format. I converted this data to GPX in R. Is there a way to run the algorithm for csv or JSON files?