data_mesgs['session'] is null

[conejog]

Hi, im testing your parser (great job) but i have a problem.

I have an issue with the parser. Unfortunatly, data_mesgs['session'] is null and i don't have any data. data_mesgs['record'] is ok, full of data. the fit file is ok, is a bike workout (2 hours duration). recorded using forerunner 935. i tested the fit in fitfileviewer.com and is ok. do you know where is the problem?

thanks so much.

[adriangibbons]

Hi, my understanding of the FIT protocol is that there are not many mandatory fields. I don't think a valid FIT file is required to have Session messages within it.

Is it just for one file (for your Garmin 935) that you get this or all? As a workaround, you can probably derive the information in Session from the Record data.

If you're able to share a FIT file here then I can take a look. I will run it through the official FIT SDK Java program "FitToCSV" to generate a CSV file

[conejog]

hi , here is the file seems ok, i can see all the data in training peaks, garmin connect and fitfileviewver.com. i don't know where is the problem.... 77212839306.txt

[conejog]

i have a new one (from other device) with a similar problem. says Uncaught Exception: phpFITFileAnalysis->readHeader(): not a valid header size! but the file is ok 78091779901.txt

[adriangibbons]

Just ran the x06.fit file through the SDK parser and there is session messages in there so I am investigating...

[adriangibbons]

First look and I'm a bit stumped. Looking at the protocol to see if anything has changed and I note:

An activity file shall contain file_id, activity, session, and lap messages. The file may also contain record, event, length and/or hrv messages.

So there definitely should be session information in the file (confirmed by the FitCSVTool.jar). I just don't see any messages with a global message number of 18, which relate to session messages.

[conejog]

Hi, how are you? do you have any update? thanks. greetings,