I’ve made two additional observations on this since I just got this again:
- In the “output” tab, there was text regarding PlatformIO failing to contribute a task for some debug configuration. (“PlatformIO Debug (nucleo_f447ze)” for me). I removed some of the older projects in my workspace, the error went away and I could build again
- a user PIO, VSC can't build, no tasks found - #56 by benn0beam0 has discovered that it may have something to do with an auto-detection setting.