Duplicate Timestamps in GPX file

Can you post more information about the tracebacks that you got? I did a quick test uploading a hand-crafted GPX with duplicate timestamps, and I had no problems uploading.

Regards,
Martijn.

Hi Martijn,
Here’s a minimal gpx file which doesn’t work for me. If I change the seconds from 35 to 36 in the second entry it works ok.
Regards
Robbie

<?xml version="1.0" encoding="UTF-8"?>
<gpx creator="Wikiloc - https://www.wikiloc.com" version="1.1" xmlns="https://www.topografix.com/GPX/1/1" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://www.topografix.com/GPX/1/1 https://www.topografix.com/GPX/1/1/gpx.xsd">
  <trk>
    <name>Abdet</name>
    <cmt>comment
</cmt>
    <desc>description
</desc>
    <trkseg>
      <trkpt lat="38.694845" lon="-0.257474">
        <ele>645.0</ele>
        <time>2012-04-19T11:28:35Z</time>
      </trkpt>
      <trkpt lat="38.694916" lon="-0.257425">
        <ele>650.0</ele>
        <time>2012-04-19T11:28:35Z</time>
      </trkpt>
      </trkseg>
  </trk></gpx>

and the traceback:

( ! ) Warning: Division by zero in C:\wamp\www\walksinspain\wordpress\wp-content\plugins\trackserver\trackserver.php on line 3001
Call Stack
#	Time	Memory	Function	Location
1	0.0006	258104	{main}( )	..\admin-post.php:0
2	0.8385	53822840	do_action( )	..\admin-post.php:69
3	0.8386	53824400	call_user_func_array:{C:\wamp\www\walksinspain\wordpress\wp-includes\plugin.php:524} ( )	..\plugin.php:524
4	0.8386	53824544	Trackserver->admin_post_upload_track( )	..\plugin.php:524
5	0.8394	53825576	Trackserver->handle_admin_upload( )	..\trackserver.php:2705
6	0.8398	53825928	Trackserver->handle_uploaded_files( )	..\trackserver.php:2163
7	0.8464	53827912	Trackserver->process_gpx( )	..\trackserver.php:2110
8	0.9342	53850680	Trackserver->mapmytracks_insert_points( )	..\trackserver.php:2223
9	0.9706	53853304	Trackserver->calculate_distance( )	..\trackserver.php:1996
10	0.9706	53853504	Trackserver->calculate_distance_speed( )	..\trackserver.php:2980

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp\www\walksinspain\wordpress\wp-content\plugins\trackserver\trackserver.php:3001) in C:\wamp\www\walksinspain\wordpress\wp-content\plugins\trackserver\trackserver.php on line 2706
Call Stack
#	Time	Memory	Function	Location
1	0.0006	258104	{main}( )	..\admin-post.php:0
2	0.8385	53822840	do_action( )	..\admin-post.php:69
3	0.8386	53824400	call_user_func_array:{C:\wamp\www\walksinspain\wordpress\wp-includes\plugin.php:524} ( )	..\plugin.php:524
4	0.8386	53824544	Trackserver->admin_post_upload_track( )	..\plugin.php:524
5	1.0494	53844336	setcookie ( )	..\trackserver.php:2706

( ! ) Warning: Cannot modify header information - headers already sent by (output started at C:\wamp\www\walksinspain\wordpress\wp-content\plugins\trackserver\trackserver.php:3001) in C:\wamp\www\walksinspain\wordpress\wp-includes\pluggable.php on line 1174
Call Stack
#	Time	Memory	Function	Location
1	0.0006	258104	{main}( )	..\admin-post.php:0
2	0.8385	53822840	do_action( )	..\admin-post.php:69
3	0.8386	53824400	call_user_func_array:{C:\wamp\www\walksinspain\wordpress\wp-includes\plugin.php:524} ( )	..\plugin.php:524
4	0.8386	53824544	Trackserver->admin_post_upload_track( )	..\plugin.php:524
5	1.0553	53844216	wp_redirect( )	..\trackserver.php:2708
6	1.0558	53855376	header ( )	..\pluggable.php:1174

Hi Robbie,

Silly of me, I should have seen this is a warning, not a fatal error. The uploads succeed, but the speed is not caclulated.

In the next version of Trackserver, I make sure the time delta between two points is set to at least one second, so this warning should no longer occur.

Sorry for the delay, Trackserver hasn’t gotten the love it deserves from me in the past few months.

Best regards,
Martijn.