Problem reading a GPX file

[V.V.V.]

Thank you very much Thomas : It works.

One thing more, RouteConverter don't read the speed data even in the original file is the speed:

        <trkpt lat="40.139935" lon="-6.032712">
            <time>2018-08-23T10:59:05Z</time>
            <speed>25.45</speed>
            <extensions>
                <gpxtpx:TrackPointExtension>
                    <gpxtpx:hr>103</gpxtpx:hr>
                </gpxtpx:TrackPointExtension>
            </extensions>
        </trkpt>

But also RouteConverter doesn't write the speed info in the file even if you complete the points and it "kills" the initial speed info, deleting the <speed></speed> fields.

On the other hand, it doesn't read the HerthRate info <gpxtpx:hr> but it preserve the info when you save the file (good!).