GDB cmd failed error: address of symbol "APBprescTable" is unknown Hello there I have a problem with STM Studio whenever I want to open a .elf file (the project debug file) to monitor a variable on STM studio an error pops up, here is a picture:

[JBazm.1]

and I can't find the variables that i've declared.

by the way the project downloads on board and works , I use stm32cubeIDE

do anybody knows what's the solution?

I'd be thankful