I am trying to build an IR camera and am having trouble compiling for board Adafruit ESP32 Feather.

Arduino: 1.8.8 (Windows 7), Board: "Adafruit ESP32 Feather, 80MHz, 921600, Debug", esp32 1.0.0
Error compiling for board Adafruit ESP32 Feather.

Hello, I'm completely new to this but trying to make progress. I installed SiLabs CP2104 Driver. Then loaded ESP32 1.0.1 in board manager. I was unable to find Adafruit ESP32 Feather. I found post "Compile error on latest commit #866" with the same problem. I uninstalled ESP32 1.0.1 then loaded ESP32 1.0.0 in board manager. I restarted IDE and I was able to find Adafruit ESP32 Feather. :) However, I'm still having trouble compiling for board Adafruit ESP32 Feather. Any help is greatly appreciated.

Arduino: 1.8.8 (Windows 7), Board: "Adafruit ESP32 Feather, 80MHz, 921600, Debug"

C:\Users\M1\AppData\Local\Temp\arduino_build_21702/arduino.ar(main.cpp.o): In function `loopTask(void*)':

C:\Users\M1\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.0\cores\esp32/main.cpp:15: undefined reference to `setup()'

C:\Users\M1\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.0\cores\esp32/main.cpp:17: undefined reference to `loop()'

collect2.exe: error: ld returned 1 exit status

exit status 1
Error compiling for board Adafruit ESP32 Feather.
void setup() {
}

void loop() {
}

### Debug Messages: None

How do I access the debug serial output?