WebDriverWait for Selenium Webdriver -Wait code

Question

进入Visual Studio for Selenium Webdriver ...

此代码获取错误参数，有人可以帮助我吗？

 WebDriverWait wait = new WebDriverWait(driver, 5); 
 wait.until(ExpectedConditions.presenceOfElementLocated(By.id("signin-email")));

查看捕获： http://s28.postimg.org/s416s3zwd/OCTAVO.jpg