Can the input gps traces file contain just point?

Hi,
I want to match some points to the road network with the ESRI’s shp file(point layer and road network layer). I try to convert the shp file to gpx format and run it in your software, error ‘gpx list needs at least 2 points’ appears. So, can the input gps traces file contain just point ? what should I do ?

A GPX file with just one point could be matched but this would be too much wild guessing and so we require at least 2 points. Maybe just throw away those files as they do not really build a road network? Also have a look into this https://github.com/graphhopper/graphhopper/pull/616