Probably GL200 decoder needs another update. Do you have the protocol documentation?
This is probably the correct document, I think. https://ca-iot.com/wp-content/uploads/2024/10/gl320m-series-track-air-interface-protocol_v3.03.pdf
Looks like your sample doesn't match the format.
Strange, we tried this device in other tracking systems and everything worked fine there. How could this be fixed in this version of traccar? Maybe there is some setting on the server? I see here that it seems to be related to the time format.
I looked at the later log entries, there are more fields, but the error is still displayed. And yes, I see that the protocol version is newer on the device. In the newer entries I see that at least the "GPS UTC time" matches, the problem is with the last "Send Time", it is out of place. I will try to check the device settings, maybe I missed something. For now, here's a newer entry with more parameters:
2026-01-15 10:05:32 INFO: [T7a8459b1: gl200 < 90.131.41.10] +RESP:GTERI,C30303,IMEI,gl320m,00000800,0,0,1,4,-1,0,101.0,25.308406,54.701647,20260115080522,0246,0003,0139,D37F,,98,9,20260115080522,071E$
2026-01-15 10:05:32 WARN: [T7a8459b1] error - For input string: "20260115080522" - NumberFormatException (... < Gl200TextProtocolDecoder:151 < *:967 < *:1733 < Gl200ProtocolDecoder:54 < ExtendedObjectDecoder:73 < ... < WrapperContext:102 < ...)
2026-01-15 10:05:32 INFO: [T7a8459b1] disconnected
We can fix it if we get the correct documentation.
I'll try to find newer documentation. But I found this link from you - https://github.com/traccar/traccar/issues/5727 . Did you manage to solve the problem there? Because it seems that the protocol version is the same as mine. And if you managed to solve it, in which version of traccar is that change already present?
That issue is resolved, as you can see. You can also easily check which version that change was included.
As I see, it was resolved three weeks ago, I currently have version 6.11.1, but I'm not sure if it already has this fix.
Why are you not sure? When was 6.11.1 released?
Version 6.11.1 was released on 2025-12-07, the patch we are talking about was three weeks ago. So as I understand it, this patch is not yet in the latest version of 6.11.1. Is that correct? And if so, when do you plan to release the next version?
That's correct.
I got it, thanks for the info. I'll wait until new version released and maybe it'll help solve my problem.
It doesn't because I already tested your sample against the latest code, but the error is slightly different.
Hello all. I have problems with the GL320M device, I can't see real-time data on the traccar server. Event and alarm are there, the last position seems to be visible, but for some reason it doesn't show intermediate data when moving. I see errors in the log, I don't know if it's related. Traccar version 6.11.1. I would be grateful if someone could help me solve this problem, thanks. Error code below: