esp8266 12E MicroPython ampy -p COM7 ls command not listing boot.py file

Hello, I would like to program the esp8266 using micropython. I am using the tutorial posted here Link . Everything was going well until trying to read the boot.py file with the ampy -p COM7 ls command. I don't know what the file is supposed to display in. I am posting the console dump below. I would be very grateful for any attempt to help.