Attempting a debug connection to a device with RDP protection gives misleading error message

[AHugh.2]

I just spent some time trying to get a debug session going in VSCode ony to be given the rather obscure error message: "bound doStepConnectToTarget Failed: could not connect (error 138): The system tried to join a drive to a directory on a joined drive."

Eventually I realised what it was - I had enabled RDP protection on the device (STM32C5) so of course it could not connect.

May I suggest that a more appropriate error message is given in such circumstances?

 

(this is with stlink gdb debugger, latest version.)

[Andrew Neil]

This seems to be a generic GDB issue - nothing specific to ST.

[Jonas15543]

I had the same error and hit the “Upgrade ST-Link firmware” option within the VS Code plugin and it worked for me.
My RDP level was already at 0 (AA). New NucleoL432KC being plugged in for the first time.