![Web.esphome.io says "failed to execute 'open' on 'SerialPort': Failed to open serial port. : r/Esphome Web.esphome.io says "failed to execute 'open' on 'SerialPort': Failed to open serial port. : r/Esphome](https://external-preview.redd.it/web-says-failed-to-execute-open-on-serialport-failed-to-v0-08dcq2H8z8WmQPJVOkdTpJYAVF88ePQNOMp5kVhjepg.jpg?auto=webp&s=bb268178aa88d9ffdd7ecf75a891337b35635936)
Web.esphome.io says "failed to execute 'open' on 'SerialPort': Failed to open serial port. : r/Esphome
Unable to open serial port from NW.js desktop app engine · Issue #861 · serialport/node-serialport · GitHub
![PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device - Unix & Linux Stack Exchange PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device - Unix & Linux Stack Exchange](https://i.stack.imgur.com/vYXzk.png)
PuTTY can access serial port as /dev/ttyUSB0, but not as named udev device - Unix & Linux Stack Exchange
![All of a sudden BetaFlight: Failed to open serial port, when trying to repair ImpulseRC: the port 'COM7' does not exist. And I can see COM 7 in BetaFlight right now. FC All of a sudden BetaFlight: Failed to open serial port, when trying to repair ImpulseRC: the port 'COM7' does not exist. And I can see COM 7 in BetaFlight right now. FC](https://i.redd.it/806jxpy9d7d41.jpg)
All of a sudden BetaFlight: Failed to open serial port, when trying to repair ImpulseRC: the port 'COM7' does not exist. And I can see COM 7 in BetaFlight right now. FC
![Port monitor error: command 'open' failed: Invalid serial port. Could not connect to COM11 serial port - IDE 2.x - Arduino Forum Port monitor error: command 'open' failed: Invalid serial port. Could not connect to COM11 serial port - IDE 2.x - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/9/5/5/955113951452fd9a4c319733c26ac0959f7037a0_2_690x388.png)