Load the Arduino envoirment on a brand new MacBook Pro.
Try to compile The Core2 and the M5Stack fire.

Now I get the message : No module named serial.
On the system is the latest version of python installed.

What to do?

File "/Users/jankromhout/Library/Arduino15/packages/m5stack/tools/esptool_py/3.0.0/esptool.py", line 39, in <module>
import serial
ImportError: No module named serial
exit status 1
Fout bij het compileren voor board M5Stack-FIRE