Example of 'OTAWebUpdater' has an closing '/tr' but no opening. there is a 'tr' missing. I suppose after line 28 (Username:) ? https://github.com/espressif/arduino-esp32/blob/master/libraries/ArduinoOTA/examples/OTAWebUpdater/OTAWebUpdater.ino#L30 Wrong formatting shown by Google Chrome (see line 20): 