appium 报错 `We wanted "MJSONWP protocol requires type and ms" and you sent {"implicit":5000}`

错误信息如下:

...
    self.driver.implicitly_wait(5)
../../../../../../myenv/allenv/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py:1142: in implicitly_wait
    self.execute(Command.SET_TIMEOUTS, {
../../../../../../myenv/allenv/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py:418: in execute
    self.error_handler.check_response(response)
../../../../../../myenv/allenv/lib/python3.8/site-packages/appium/webdriver/errorhandler.py:30: in check_response
    raise wde
../../../../../../myenv/allenv/lib/python3.8/site-packages/appium/webdriver/errorhandler.py:26: in check_response
    super().check_response(response)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <appium.webdriver.errorhandler.MobileErrorHandler object at 0x7f9747edbdf0>
response = {'status': 400, 'value': 'Parameters were incorrect. We wanted "MJSONWP protocol requires type and ms" and you sent {"implicit":5000}'}

    def check_response(self, response: Dict[str, Any]) -> None:
        """
        Checks that a JSON response from the WebDriver does not have an error.
    
        :Args:
         - response - The JSON response from the WebDriver server as a dictionary
           object.
    
        :Raises: If the response contains an error message.
        """
        status = response.get('status', None)
        if not status or status == ErrorCode.SUCCESS:
            return
        value = None
        message = response.get("message", "")
        screen: str = response.get("screen", "")
        stacktrace = None
        if isinstance(status, int):
            value_json = response.get('value', None)
            if value_json and isinstance(value_json, str):
                import json
                try:
                    value = json.loads(value_json)
                    if len(value.keys()) == 1:
                        value = value['value']
                    status = value.get('error', None)
                    if not status:
                        status = value.get("status", ErrorCode.UNKNOWN_ERROR)
                        message = value.get("value") or value.get("message")
                        if not isinstance(message, str):
                            value = message
                            message = message.get('message')
                    else:
                        message = value.get('message', None)
                except ValueError:
                    pass
    
        exception_class: Type[WebDriverException]
        if status in ErrorCode.NO_SUCH_ELEMENT:
            exception_class = NoSuchElementException
        elif status in ErrorCode.NO_SUCH_FRAME:
            exception_class = NoSuchFrameException
        elif status in ErrorCode.NO_SUCH_WINDOW:
            exception_class = NoSuchWindowException
        elif status in ErrorCode.STALE_ELEMENT_REFERENCE:
            exception_class = StaleElementReferenceException
        elif status in ErrorCode.ELEMENT_NOT_VISIBLE:
            exception_class = ElementNotVisibleException
        elif status in ErrorCode.INVALID_ELEMENT_STATE:
            exception_class = InvalidElementStateException
        elif status in ErrorCode.INVALID_SELECTOR \
                or status in ErrorCode.INVALID_XPATH_SELECTOR \
                or status in ErrorCode.INVALID_XPATH_SELECTOR_RETURN_TYPER:
            exception_class = InvalidSelectorException
        elif status in ErrorCode.ELEMENT_IS_NOT_SELECTABLE:
            exception_class = ElementNotSelectableException
        elif status in ErrorCode.ELEMENT_NOT_INTERACTABLE:
            exception_class = ElementNotInteractableException
        elif status in ErrorCode.INVALID_COOKIE_DOMAIN:
            exception_class = InvalidCookieDomainException
        elif status in ErrorCode.UNABLE_TO_SET_COOKIE:
            exception_class = UnableToSetCookieException
        elif status in ErrorCode.TIMEOUT:
            exception_class = TimeoutException
        elif status in ErrorCode.SCRIPT_TIMEOUT:
            exception_class = TimeoutException
        elif status in ErrorCode.UNKNOWN_ERROR:
            exception_class = WebDriverException
        elif status in ErrorCode.UNEXPECTED_ALERT_OPEN:
            exception_class = UnexpectedAlertPresentException
        elif status in ErrorCode.NO_ALERT_OPEN:
            exception_class = NoAlertPresentException
        elif status in ErrorCode.IME_NOT_AVAILABLE:
            exception_class = ImeNotAvailableException
        elif status in ErrorCode.IME_ENGINE_ACTIVATION_FAILED:
            exception_class = ImeActivationFailedException
        elif status in ErrorCode.MOVE_TARGET_OUT_OF_BOUNDS:
            exception_class = MoveTargetOutOfBoundsException
        elif status in ErrorCode.JAVASCRIPT_ERROR:
            exception_class = JavascriptException
        elif status in ErrorCode.SESSION_NOT_CREATED:
            exception_class = SessionNotCreatedException
        elif status in ErrorCode.INVALID_ARGUMENT:
            exception_class = InvalidArgumentException
        elif status in ErrorCode.NO_SUCH_COOKIE:
            exception_class = NoSuchCookieException
        elif status in ErrorCode.UNABLE_TO_CAPTURE_SCREEN:
            exception_class = ScreenshotException
        elif status in ErrorCode.ELEMENT_CLICK_INTERCEPTED:
            exception_class = ElementClickInterceptedException
        elif status in ErrorCode.INSECURE_CERTIFICATE:
            exception_class = InsecureCertificateException
        elif status in ErrorCode.INVALID_COORDINATES:
            exception_class = InvalidCoordinatesException
        elif status in ErrorCode.INVALID_SESSION_ID:
            exception_class = InvalidSessionIdException
        elif status in ErrorCode.UNKNOWN_METHOD:
            exception_class = UnknownMethodException
        else:
            exception_class = WebDriverException
        if not value:
            value = response['value']
        if isinstance(value, str):
>           raise exception_class(value)
E           selenium.common.exceptions.WebDriverException: Message: Parameters were incorrect. We wanted "MJSONWP protocol requires type and ms" and you sent {"implicit":5000}

../../../../../../myenv/allenv/lib/python3.8/site-packages/selenium/webdriver/remote/errorhandler.py:207: WebDriverException

出错是关于隐式等待,隐式等待的设置并没有错误

报错代码如下:

  def setup(self):
      # 打开应用
      caps = {}
      caps["platformName"] = "Android"
      caps["deviceName"] = "hogwarts"
      caps["appPackage"] = "com.tencent.wework"
      caps["appActivity"] = ".launch.LaunchSplashActivity"
      caps["noReset"] = "True"
      self.driver = webdriver.Remote("http://localhost:4723/wd/hub", caps)
      self.driver.implicitly_wait(5)

配置写的不对,将配置caps["noReset"] = "True" 改为 caps["noReset"] = "true"即解决。

另外,需要注意的时候,最新版本的appium-python-client 需要搭配最新版本的appium-server , 否则会出现很诡异的问题。

目前新版本如下:

Appium-Python-Client       2.1.4
Appium-Server   1.22.x