Problems creating custom field in activity with VA3

Hi all,

I am making a device app/activity for my VA3 which seems to work fine. I have however lots of problems with getting a custom field to be displayed

in the activity summary. A snippet of my source code:

function startSession() {

_session = ActivityRecording.createSession({:name=>"Step Counter", :sport=>ActivityRecording.SPORT_TRAINING});

_stepsFit = WatchUi.SimpleDataField.createField("Steps", 0, FitContributor.DATA_TYPE_UINT32,
{:mesgType => FitContributor.MESG_TYPE_SESSION});

//_stepsFit = FitContributor.createField("Steps", 0, FitContributor.DATA_TYPE_UINT32, //tried this as well
// {:mesgType => FitContributor.MESG_TYPE_SESSION});

_session.start();
}

function stopSession() {
_session.stop();
_stepsFit.setData(_steps.toNumber());
_session.save();
_session = null
}

When I check the FIT file with monkeygraph, it shows the fieldname in the session summary but the value is #VALUE?. I think I tried about everything

by now but to no avail. I have been searching through the forum and I have found that more developers have (had) this problem, but the entries are

more than 2 years old and I haven't found any solutions.

Could somebody please help me out? Thanks!

Kind regards,

Maartje

Oh, the contributionsfile: