Hi, i am using stm32IDE if i entering into debug mode getting this error please help me to crack this. Failed to bind to port 61234, error code -1: No error Failure starting GDB server: TCP port 61234 not available.

MK S.1 · ‎2020-02-14

KFuhr.1 · ‎2020-10-14

I could fix it by restarting my PC. apparently the GDB server needed a restart

View solution in original post

MKiri.1 · ‎2020-05-22

me to

CubeIDE win10

KFuhr.1 · ‎2020-10-14

Me too

It just happend and I don't know how.

warm38 · ‎2020-10-14

downloaded 1.4.0

installed it

ran 1.4.0

compiled latest program

0 errors 0 warnings

Check for upgrade

upgraded to 1.4.2

Compiled current program

0 errors 0 warnings

Click Debug

LED turned red

No other indication

Help -> ST Link Upgrade

refresh list

open in upgrade mode

upgrade successful

LED still red

COM port shows up, but teraterm cannot connect to it

Click Debug

and get the error message

Error in final launch sequence:

Failed to start GDB server

Error in initializing ST-LINK device.

Reason: (-1) Unknown. Please check power and cabling to target.

look at comsole

STMicroelectronics ST-LINK GDB server. Version 5.6.0

Starting server with the following options:

Persistent Mode : Disabled

Logging Level : 1

Listen Port Number : 61234

Status Refresh Delay : 15s

Verbose Mode : Disabled

SWD Debug : Enabled

InitWhile : Enabled

Failed to bind to port 61234, error code -1: Result too large

Failure starting GDB server: TCP port 61234 not available.

Try again to debug

0 errors 0 warnings

pop up saying newer version of ST Link available Upgrade? YES

Open in upgrade mode

Unexpected error during opening (1)

Device 0672FF534953867067064047 not found. No device connected.

this is on two Nucleo-STM32F401RE boards

How do I fix both boards so they can communicate again.

KFuhr.1 · ‎2020-10-14

I could fix it by restarting my PC. apparently the GDB server needed a restart

warm38 · ‎2020-10-14

I tried restarting my PC and it WORKED. I guess Windows doesn't like being up for 2 months. :)

Thanks for the suggestion.

GOtté.1 · ‎2021-01-15

I encountered the same. The problem was that the link server was still running in the background. I used the Task Manager to kill it, restarted STM32CubeIDE, and it worked again without the need of rebooting my PC.

C:\Program Files (x86)\STMicroelectronics\stlink_server\stlinkserver.exe

BareKnuckle · ‎2021-02-15

Hi all,

Instead of restarting the PC, connecting to St board or MCU with ST-Link Utility and erasing the chip before loading the code helps too.

Kepo · ‎2021-03-30

Restart the PC works fine after an upgrade.

Seunghun Kim · ‎2021-09-14

Changing port number might help. I changed the port number of GDB server from 61234 to 41234 in debug configurations, and it worked without rebooting my computer.