2024-10-02 12:32 AM
2024-10-02 12:42 AM - edited 2024-10-02 12:43 AM
Welcome to the forum.
You need to give more details for people to be able to help you:
On solving debugger connection issues:
https://community.st.com/t5/stm32-mcus/how-to-solve-debugger-connection-issues/ta-p/49693