Old version works on file new version says this:

[jonathancolledge]

(gpxenv) C:\Users\Jonathan>"C:\Users\Jonathan\Downloads\gpx-interpolate-master\gpx-interpolate-master\gpx_interpolate.py" -r 1 -s "C:\Users\Jonathan\Downloads\GpxResolutionSample\Test.gpx" Read 482 trackpoints from C:\Users\Jonathan\Downloads\GpxResolutionSample\Test.gpx Traceback (most recent call last): File "C:\Users\Jonathan\Downloads\gpx-interpolate-master\gpx-interpolate-master\gpx_interpolate.py", line 245, in main() File "C:\Users\Jonathan\Downloads\gpx-interpolate-master\gpx-interpolate-master\gpx_interpolate.py", line 240, in main gpx_write(output_file, gpx_data_interp, write_speed=args.speed) File "C:\Users\Jonathan\Downloads\gpx-interpolate-master\gpx-interpolate-master\gpx_interpolate.py", line 182, in gpx_write raise ValueError('tstamp data is missing from gpx_data') ValueError: tstamp data is missing from gpx_data

Files is here: Test.zip

[remisalmon]

This should be fixed with 2d20bdeea028d9bc9ad7c763bf9477a4c171651c, thanks for opening an issue!

[jonathancolledge]

Thanks!