Favorite files cannot be imported

[Dane-M-652]

GPX files containing favorites cannot be imported.

Sample file:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<gpx version="1.1" xmlns="http://www.topografix.com" xmlns:xsi="http://www.w3.org" xsi:schemaLocation="http://www.topografix.com http://www.topografix.com/gpx.xsd">
    <metadata>
        <name>Test Favorites</name>
    </metadata>
    <wpt lat="45.0" lon="7.0">
        <name>Test 1</name>
    </wpt>
</gpx>

The console shows the following reply:

SyntaxError: JSON.parse: unexpected character at line 1 column 221 of the JSON data

[yuriiurshuliak]

Related to #1427

[yuriiurshuliak]

Hi @Dane-M-652, thanks!

Please attach:

• the exact GPX file that fails to import,
• a short screen recording / screenshots of the import flow (Import → select GPX → result),
• platform + version (OsmAnd Web/Android/iOS, build; for Web also browser),
• Console log from the failed import.

You can attach the file directly to this GitHub issue by zipping it before uploading. Alternatively, you can send it to our support mailbox support@osmand.net, mentioning the issue title and number in your message.

[yuriiurshuliak]

Importing a GPX file containing Favorites (waypoints via <wpt>) fails in OsmAnd Web and triggers a JSON.parse error in the browser console.

Not reproduced on my side.

Steps I followed:

1. Prepare a GPX file containing at least one <wpt> element Test_Favorites.zip
2. Open OsmAnd Web → Menu → Tracks → Import track.
3. Import the Test_Favorites track from the zip.

Result

• Import completed successfully.
• The waypoint/Favorite was displayed correctly on the map.
• No errors appeared in the browser console (no JSON.parse errors observed).

IMG_7469.MP4

[Dane-M-652]

Thanks for testing and replying!

Importing your sample Test_Favorites.zip doesn't work for me using Firefox 147.0.3

The response contains the value NaN, which is not correct JSON syntax:

{"gpx_data":{"metaData":{"name":"Test Favorites","ext":{"time":1770751693307,"extensions":{}}},"wpts":[{"name":"Test 1","lat":45.0,"lon":7.0,"ext":{"firstPoint":false,"lastPoint":false,"lat":0.0,"lon":0.0,"time":0,"ele":NaN,"speed":0.0,"hdop":NaN,"heading":NaN,"bearing":NaN,"deleted":false,"speedColor":0,"altitudeColor":0,"slopeColor":0,"colourARGB":0,"distance":0.0,"extensions":{}}}],"tracks":[],"pointsGroups":{"":{"name":"","points":[{"lat":0.0,"lon":0.0,"ext":{"firstPoint":false,"lastPoint":false,"lat":0.0,"lon":0.0,"time":0,"ele":NaN,"speed":0.0,"hdop":NaN,"heading":NaN,"bearing":NaN,"deleted":false,"speedColor":0,"altitudeColor":0,"slopeColor":0,"colourARGB":0,"distance":0.0,"extensions":{}}}],"ext":{"name":"","points":[],"color":0,"hidden":false}}},"analysis":{"hasSpeedData":false,"minElevation":99999.0,"maxSpeed":0.0,"diffElevationUp":0.0,"avgSpeed":-1.0,"hasElevationData":false,"diffElevationDown":0.0,"startTime":0,"endTime":0,"totalDistance":0.0,"minSpeed":0.0,"timeMoving":0,"avgElevation":0.0,"maxElevation":-100.0},"routeTypes":[]}}

Resulting error message in Firefox log:
SyntaxError: JSON.parse: unexpected character at line 1 column 221 of the JSON data

Have you already tried this using Firefox?

[yuriiurshuliak]

@Dane-M-652 Could you please attach a short screen recording of the import attempt in Firefox (including the Console)? I tried it in Firefox too and the import completes successfully with no console errors.

Details

[Dane-M-652]

Only the first import attempt after login produces a POST. Subsequent attempts don't even produce any console output.

Here the console output (after cleaning the entire cache):

[Dane-M-652]

Not reproduced on my side.
Steps I followed:

1. Prepare a GPX file containing at least one `<wpt>` element [Test_Favorites.zip](https://github.com/user-attachments/files/25213628/Test_Favorites.zip)

2. Open **OsmAnd Web** → **Menu → Tracks → Import track**.

3. Import the `Test_Favorites` track from the zip.

Result

Hello @yuriiurshuliak

You are importing the GPX file as a track, which works flawlessly (even if there is no track inside the file in this case).

However the bug is about importing it as favorites. In order to reproduce, use Menu → Favorites → Import favorite groups.

[yuriiurshuliak]

In OsmAnd Web, importing a GPX that contains Favorites (<wpt>) via Menu → Favorites → Import favorite groups can fail with a JSON.parse error because the server response may contain NaN values (invalid JSON).

Hi @Dane-M-652, thanks for the clarification about the correct import flow (Favorites, not Tracks).

Details

I tested your attached Test_Favorites.zip using Menu → Favorites → Import favorite groups (not Tracks), and I still can’t reproduce the issue:

• Import completes successfully
• A new favorites group is created
• The waypoint (“Test 1”) appears on the map
• No JSON.parse errors in the Console (only unrelated warnings)
• In Network, the requests return 200 OK and I don’t see NaN in the response

I’m attaching a short screen recording showing the full import flow + Console/Network on my side.

OsmAnd.Map.Mozilla.Firefox.2026-02-16.14-02-38.mp4

[Dane-M-652]

Hello @yuriiurshuliak

Thanks for retesting. After some further testing I discovered that importing GPX files as favorites only works, if a group named "favorites" is already present in OsmAnd. Since I had deleted this group, imports stopped working.

OsmAnd Android doesn't use the "favorites" group for importing, but always creates a new group with the GPX file name as group name.

My suggestion is to change the logic in OsmAnd Web as follows:

• if the GPX file contains a <metadata> element then the value of the contained <name> element should be used as group name
• if no <metadata> <name> element is present then the file name should be used as group name (like in OsmAnd Android)

With this approach the group "favorites" can be deleted without any subsequent problems, and the newly imported group always has a meaningful initial name.

[Dane-M-652]

Hello @yuriiurshuliak
One more comment from my side. Importing a GPX as favorites is currently only possible executing the following process:

• A folder named "favorites" must be present. The only way I found to create it, is to add a new dummy favorite in the map and saving it without selecting a group, which triggers the creation of the "favorites" folder
• If the folder "favorites" is present and a new GPX is imported, the following message box is always shown: "Import / Folder favorites already exist"
• After chosing the option "Keep both", the GPX is imported into a newly created folder called "favorites - 1"
• This folder then can be renamed manually to the desired name

I hope this process can be streamlined (similar to the tracks import).

[Zirochkabila]

@yuriiurshuliak Please check this option

Importing GPX as Favorites in OsmAnd Web does not work without an existing “favorites” group (unlike Android), and if it exists, it creates a duplicate “favorites - 1” instead of using the name from or the file name.

[yuriiurshuliak]

Hi @Dane-M-652 — summary: in OsmAnd Web, importing a GPX as Favorites (waypoints via <wpt>) depends on the existence of a default “favorites” group. If that group is missing, the import can fail; if it exists, the import flow may create a duplicate group (e.g., “favorites - 1”) instead of using the GPX metadata name or the file name.

Reproduced (OsmAnd Web):

Case A — Import fails when “favorites” group is missing

1. Open OsmAnd Web and log in.
2. Go to Menu → Favorites.
3. Ensure the group named “favorites” does not exist (delete it if present).
4. Go to Menu → Favorites → Import favorite groups.
5. Import a GPX/ZIP with at least one <wpt> (e.g., Test_Favorites.zip).

Actual:

Import does not complete correctly / fails when the “favorites” group is absent.

OsmAnd.Map.Mozilla.Firefox.2026-03-10.16-28-40.mp4

Case B — Import creates “favorites - 1” when “favorites” exists

1. Create the “favorites” group (e.g., add a dummy favorite and save it to the default group).
2. Confirm Menu → Favorites shows “favorites”.
3. Go to Menu → Favorites → Import favorite groups and import the same file again.
4. If prompted “Folder favorites already exist”, select “Keep both”.

Actual

Imported favorites end up in “favorites - 1” (duplicate) instead of using <metadata><name> or the file name.

OsmAnd.Map.Mozilla.Firefox.2026-02-16.14-02-38.mp4

Expected

• Import should not require an existing “favorites” group.

• Group name should be:

  • <metadata><name> (if present), otherwise
  • file name (fallback), like on Android.