Mission planner (v1.3.31) kml files dot not work for geotagging

[hugues]

Hi,
I try to geotag pictures on the basis of a GPS kml log file generated by mission planner (V1.3.31). Although the kml file displays correctly in GoogleEarth, the following command:

   exiftool.exe -geotag quadrillage1.kml TEMP

outputs errors for each picture in directory "TEMP":

   Warning : GPS track is empty in file: geotime (ValueConvInv) - TEMP/DSC04729.JPG

Is it a kml format support issue of exiftool or else ?
Thx for help

[Phil Harvey]

I don't have time to look at your KML file in detail, but the usual problem is that you can't geotag an image without timestamp information.  Often KML files lack the timestamps.

- Phil