Traceback (most recent call last):
  File "/usr/bin/indicator-weather", line 1394, in <module>
    wi = indicator_weather()
  File "/usr/bin/indicator-weather", line 675, in __init__
    self.update_weather()
  File "/usr/bin/indicator-weather", line 853, in update_weather
    log.debug("Indicator: fill in menu with params: city='%s', temp='%s', humidex='%s', humid='%s', wind='%s', sunrise='%s', sunset='%s', puretemp=%s" % (self.places[self.placechosen][1], weather.getTemperature(), weather.getHumidex(), weather.getHumidity(), weather.getWindSpeed(), weather.getSunrise(), weather.getSunset(), weather.getPureTemperature()))
  File "/usr/bin/indicator-weather", line 540, in getHumidex
    self.vapour_pressure = 6.11 * math.exp(5417.7530 * ( (1/273.16) - (1/(self.__report.getDewPointCelsius()+273.16))))
TypeError: unsupported operand type(s) for +: 'NoneType' and 'float'