Hi...i am a new user here. I also faced the same issue. As per my experience if you disconnect and reconnect then it may work - problem is Espruino wasn't able to communicate with the board properly when you connected so it wasn't aware that it was an ESP8266 which has a Wifi module.
This tends to happen straight after flashing. If you connect with putty(windows) or minicom(Linux) after flashing, and then disconnect, you can then connect with the ide.
I think it is related to the state of the com/tty port after flashing...
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Hi...i am a new user here. I also faced the same issue. As per my experience if you disconnect and reconnect then it may work - problem is Espruino wasn't able to communicate with the board properly when you connected so it wasn't aware that it was an ESP8266 which has a Wifi module.