Work for me: ubuntu 24.04 LTS:- installed gdb-multiarch- And as described :sudo -i apt install gdb-multiarch # as mentioned beforecd /opt/st/stm32cubeide_1.15.0/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.12.3.rel1.linux64_1.0....