Error connect to ESP8266 in WinIDE

I use git bash for Windows.

cd "D:\Espruino"

git clone https://github.com/espressif/esptool

cd "D:\Espruino\firmware"

python "../esptool/esptool.py" --port COM8 erase_flash

python "../esptool/esptool.py" --port COM8 --baud 115200 write_flash --flash_freq 80m --flash_mode qio --flash_size 32m 0x0000 boot_v1.6.bin 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin

D:\Espruino\firmware\ == http://www.espruino.com/files/espruino_2v08.zip -> espruino_2v08_esp8266_4mb