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N
nobody
Associate III
March 10, 2026
Question

STM32Cube Debug Jlink GDB Server V1.2.0 is not starting GDB Server

  • March 10, 2026
  • 1 reply
  • 598 views

Hello,

With the new STM32Cube Debug Jlink GDB Server V1.2.0 I'm not anymore able to start the debugging session. If I downgrade to V1.1.0 then it is working again. I get always the error message "No GDB Server running". I tried that with my old launch.json settings and with the new generated and adapted json settings.

  • Do I miss some special settings or has the new extension a bug?
  • Or do i need any dependency?

 

error message:

vs-code_error.png

old launch.json

oldDebugSettings.png

new launch.json

newDebugSettings.png

 

Thanks in advance,
nobody

 

1 reply

Nawres GHARBI
Nawres GHARBI
Technical Moderator
March 10, 2026

Hi @nobody 

try to upgrade your jlink FW, this message is generally shown when the FW version is too old comparing to the server

N
nobodyAuthor
Associate III
March 11, 2026

Hi Nawres,

Unfortunately that is not the problem. I updated the Segger J-Trace to latest firmware, but it is still not working.

N
nobodyAuthor
Associate III
March 18, 2026

Mhm, interesting.

I can not do a project setup, that is in my case greyed out. Why is that not possible? The project is from .ioc generated with the cmake option selected.

2026-03-18 09_53_01-.png

 
 

Were there any changes made, which explains why the old version is working and the new one not anymore?

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