Could not verify st device! Please verify that the latest version of the GDB-server is used for the connection

[Nguyen231]

I don't know how to fix this error when uploading the program to STM32F103C8T6.

[Andrew Neil]

welcome to the forum.

Please full details of what you're using and what, exactly, you're doing to get this message.

Show the full message log.

See: How to write your question to maximize your chances to find a solution.