error - For input string: "" - NumberFormatException

Dmitry3 years ago

Hello team,

We have an issue with some Meitrack devices with the following log:

2023-01-18 08:47:28  INFO: [T423d4ffc: meitrack < 172.18.0.21] 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
2023-01-18 08:47:28  INFO: [T423d4ffc] error - For input string: "003042224618" - NumberFormatException (... < MeitrackFrameDecoder:37 < BaseFrameDecoder:29 < ... < WrapperInboundHandler:57 < ...)
2023-01-18 08:47:28  INFO: [T423d4ffc] disconnected

We are using last (5.5) docker hub image traccar/traccar:latest.
Could you help with that?

It looks like unsupported part regarding similar issues on forum:

Thank you.

Anton Tananaev3 years ago

Please provide the protocol documentation.

mtt2 years ago

Hi @anton, here is the protocol documentation for the Meitrack P99G/P99L

http://www.meitrack.com/cd-download/Protocols/MEITRACK_P99G_GPRS_Protocol.pdf

Anton Tananaev2 years ago

Looks like you haven't provided a full message. Please provide the full connection session log from "connected" message.

Dmitry2 years ago

Thank you for replies, it was issue with specific device, solved.