Thank you for your feedback, it will be fix in the next update.
By the way, this error should only happen when the board selected in your project does not exists or your project structure is invalid (a board definition file *.xml should be in the project root).
Did you generate your project from CubeMX ?
- If you did, can you check if you’re using the latest version of CubeMX ? CubeMX older version was generating non-compatible project.
- If you didn’t, which board/mcu did you choose ?