[Bug]: GO MODBUS invalid read request

[telmobarrena98]

What happened?

After successful connection via MODBUS with GO, I try to get a variable value:

// Prepare a read-request
readRequest, err := connection.ReadRequestBuilder().
	AddTagAddress("tag1", "holding-register:1:REAL").
	Build()
fmt.Printf("err.Error(): %v\n", err.Error())

, however I am receiving this output:

{"level":"debug","time":"2024-10-30T13:55:25+01:00","message":"No quantity supplied, assuming 1"}
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x18 pc=0x4f7397]

Version

V1.23.2

Programming Languages

• plc4j
• plc4go
• plc4c
• plc4net

Protocols

• AB-Ethernet
• ADS /AMS
• BACnet/IP
• CANopen
• DeltaV
• DF1
• EtherNet/IP
• Firmata
• KNXnet/IP
• Modbus
• OPC-UA
• S7

[sruehl]

usually there should be a stack trace on a panic attached. Check if you can attach that too

[telmobarrena98]

I was missing to put the "err" inside an if statement, like this:
if err != nil { fmt.Printf("err.Error(): %v\n", err.Error()) }
, solved thanks