After update debug does not work, failed to execute MI command
The best solution I have found is to not use workbench. I loaded the latest Eclipse (Mars.2) and added the plugins for GNU arm, installed the latest openOCD, installed the latest texane STLink, and installed the GNU Utilities and copied make.exe from there over to the ARM tool set directory. After that I am able to start a new project based on the STM32fx I am using (such as STM32F7) and compile, then run the debugger.