Selenium NoSuchElementException:无法使用RemoteWebDriver Java找到使用By.xpath的元素

Selenium NoSuchElementException:无法使用RemoteWebDriver Java找到使用By.xpath的元素,java,selenium,selenium-webdriver,selenium-grid,remotewebdriver,Java,Selenium,Selenium Webdriver,Selenium Grid,Remotewebdriver,在本地计算机上运行拖放文件上载脚本工作正常,测试通过,但尝试远程运行同一脚本-RemoteWebDriver时,测试失败,出现异常: org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element: {"method":"xpath","selector":"//*[@class='dz-message']"

在本地计算机上运行拖放文件上载脚本工作正常,测试通过,但尝试远程运行同一脚本-RemoteWebDriver时,测试失败,出现异常:

org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element: 
{"method":"xpath","selector":"//*[@class='dz-message']"}
(Session info: chrome=62.0.3202.75)
(Driver info: chromedriver=2.35.528161 (5b82f2d2aae0ca24b877009200ced9065a772e73),platform=Windows NT 
 6.3.9600 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 50 milliseconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'
System info: host: 'vc2coma1395994', ip: '10.146.2.48', os.name: 'Windows Server 2012 R2', os.arch: 
'amd64', os.version: '6.3', java.version: '1.8.0_211'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities [{applicationCacheEnabled=false, rotatable=false, mobileEmulationEnabled=false, 
我尝试过使用显式等待,但没有任何效果

    wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("//*[@class='dz message']")));
这是密码 驱动程序。获取(“http://html5demos.com/file-api"); WebElement droparea=driver.findElement(By.cssSelector(“#holder”)

    @FindBy(how = How.XPATH, using = "//*[@class='dz-message']")
    private WebElement target;

    public void dropFile(String filePath){

      File file = new File(filePath);
      int offsetX =0, offsetY=0;

      if(!file.exists())
        throw new WebDriverException("File not found: " + 
      file.toString());

      JavascriptExecutor jse = (JavascriptExecutor)driver;
      WebDriverWait wait = new WebDriverWait(driver, 30);

    
      String JS_DROP_FILE =
            "var target = arguments[0]," +
                    "    offsetX = arguments[1]," +
                    "    offsetY = arguments[2]," +
                    "    document = target.ownerDocument || document," +
                    "    window = document.defaultView || window;" +
                    "" +
                    "var input = document.createElement('INPUT');" +
                    "input.type = 'file';" +
                    "input.style.display = 'none';" +
                    "input.onchange = function () {" +
                    "  var rect = target.getBoundingClientRect()," +
                    "      x = rect.left + (offsetX || (rect.width >> 1))," +
                    "      y = rect.top + (offsetY || (rect.height >> 1))," +
                    "      dataTransfer = { files: this.files };" +
                    "" +
                    "  ['dragenter', 'dragover', 'drop'].forEach(function (name) {" +
                    "    var evt = document.createEvent('MouseEvent');" +
                    "    evt.initMouseEvent(name, !0, !0, window, 0, 0, 0, x, y, !1, !1, !1, !1, 0, 
                    null);" +
                    "    evt.dataTransfer = dataTransfer;" +
                    "    target.dispatchEvent(evt);" +
                    "  });" +
                    "" +
                    "  setTimeout(function () { document.body.removeChild(input); }, 25);" +
                    "};" +
                    "document.body.appendChild(input);" +
                    "return input;";

      WebElement input =  (WebElement)jse.executeScript(JS_DROP_FILE, target, offsetX, offsetY);
      input.sendKeys(file.getAbsoluteFile().toString());
      wait.until(ExpectedConditions.stalenessOf(input));

  }