@greenleaf said in Building Core2 FactoryDemo in PlatformIO:

http://jokercatz.blogspot.com/2020/11/m5stack-core2-build-from-platformio.html

Thanks for the guidance.
How could this be adjusted for the M5AtomLite, M5Stack Basic and M5Paper ?

I've got similar problems: Not being able to burn anything from VSCode/PlatformIO with the same error message.
Running under macOS Big Sur. Trying to use the M5AtomLite

I finally got it working under Arduino IDE, being able to burn code.
The UIFlo software also works, partially. With the M5Burner I can erase and burn the UIFlow software, setting it to USB mode, and after that, it is able to burn a new program with UIFlow (using 1.7.2 beta). But after each burn, the connection gets lost and I need to go to M5Burner separately, erase the Atom and burn UIFlow again, and setting it to USB-mode.

But my prime concern is using VSCode, which doesn't work
Using Board definition pico32.