Debuging with Arduino IDE 2.3.0 and JLinkGDBServe fails

[lboue]

Describe the problem

Debuging with Arduino IDE fails with this error even if I followed this guide:
https://github.com/SiliconLabs/arduino?tab=readme-ov-file#debugger-configuration-file

Invalid servertype parameters. The following values are supported: "jlink", "openocd", "stlink", "stutil", "pyocd", "bmp", "pe", "qemu", "external"

debug_custom.json

{
    "servertype": "jlink",
    "device": "MGM240PB32VNA",
    "interface": "SWD",
    "serverpath": "C:/Program Files/SEGGER/JLink_V794d/JLinkGDBServerCL.exe"
}

Env

• Arduino IDE version: 2.3.0

To reproduce

https://github.com/SiliconLabs/arduino?tab=readme-ov-file#debugger-configuration-file

debug_custom.json

{
    "servertype": "jlink",
    "device": "MGM240PB32VNA",
    "interface": "SWD",
    "serverpath": "C:/Program Files/SEGGER/JLink_V794d/JLinkGDBServerCL.exe"
}

Expected behavior

Start debugger.

Arduino IDE version

2.3.0

Operating system

Windows

Operating system version

Windows 11.2312.18.0

Additional context

No response

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details

[dankeboy36]

Hello, nice report, but not necessarily a bug. Your debug_custom.json content looks incorrect if you use IDE 2.3.0+. The JSON must be an array of objects and not an object. See from #2281 (comment):

BREAKING:

A new schema has been introduced for debug_custom.json.

The https://github.com/SiliconLabs/arduino?tab=readme-ov-file#debugger-configuration-file doc needs to be updated.

You must have something like this instead: #2299 (comment)

[
  {
    "configId": "here comes the FQBN of the board and the programmer. Copy it from the `launch.json`",
    "servertype": "jlink",
    "device": "MGM240PB32VNA",
    "interface": "SWD",
    "serverpath": "C:/Program Files/SEGGER/JLink_V794d/JLinkGDBServerCL.exe"
  }
]

[lboue]

Thanks for the explanation

[dankeboy36]

Please let me know if you need help getting it working.