"message":"An unknown server-side error occurred while processing the command."}

Hi, when tried to swipe up the page,
im getting below error. same script was working fine before . but after new appium server, im getting this error

appium version : Version 1.2.0 (1.2.0)
iOS: Mac: 10.12.6 (16G1114)


schedule_core.py:135: in test_sunday
self.get_day_digit ( driver, “Sunday” ) )
schedule_core.py:27: in create_schedule
rbm_core.swipe_up_page ( driver )
rbm_core.py:369: in swipe_up_page
return driver.swipe ( 100, 1730, 100, 450 )
/Library/Python/2.7/site-packages/appium/webdriver/webdriver.py:264: in swipe
action.perform()
/Library/Python/2.7/site-packages/appium/webdriver/common/touch_action.py:94: in perform
self._driver.execute(Command.TOUCH_ACTION, params)
/Library/Python/2.7/site-packages/selenium/webdriver/remote/webdriver.py:238: in execute
self.error_handler.check_response(response)


self = <appium.webdriver.errorhandler.MobileErrorHandler object at 0x1101ec210>
response = {‘status’: 500, ‘value’: ‘{“status”:13,“value”:{“message”:“An unknown server-side error occurred while processing the command.”},“sessionId”:“e1147dec-3102-4db2-a705-53a88402bd24”}’}

def check_response(self, response):
    try:
        super(MobileErrorHandler, self).check_response(response)
    except WebDriverException as wde:
        if wde.msg == 'No such context found.':
            raise NoSuchContextException(wde.msg, wde.screen, wde.stacktrace)
        else:
          raise wde

E WebDriverException: Message: An unknown server-side error occurred while processing the command.

/Library/Python/2.7/site-packages/appium/webdriver/errorhandler.py:29: WebDriverException

Your appium version is very old, do check with latest version again 1.7.2 ( https://github.com/appium/appium/releases )