Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
Thanks for you quick answer.
Two times I'm getting this kind of issue and always the same problem, the project contains a special character '&'. I have move it and building+debugging is working now!