我正在與Selenium Standalone Server 3.0.1。我正在嘗試向Explicit Wait代碼中添加，以在元素可見時通過xpath檢測元素。為了獲得一些Java幫助，我尋找了源代碼， Selenium Standalone Server 3.0.1但找不到它。我在selenium-java-2.53.1發(fā)行版中找到了源代碼。我下載并找到selenium-java-2.53.1-srcs并添加到我的Eclipse IDE。在的幫助下FluentWait，我只需將代碼復(fù)制粘貼到我的代碼中，Eclipse IDE然后更改變量名。文檔中的示例代碼如下：   // Waiting 30 seconds for an element to be present on the page, checking   // for its presence once every 5 seconds.    Wait<WebDriver> wait = new FluentWait<WebDriver>(driver)       .withTimeout(30, SECONDS)       .pollingEvery(5, SECONDS)       .ignoring(NoSuchElementException.class);    WebElement foo = wait.until(new Function<WebDriver, WebElement>() {     public WebElement apply(WebDriver driver) {       return driver.findElement(By.id("foo"));      }    });但是，當我實現(xiàn)此代碼時，只需復(fù)制粘貼即可：       Wait<WebDriver> wait = new FluentWait<WebDriver>(driver)           .withTimeout(30, TimeUnit.SECONDS)           .pollingEvery(5, TimeUnit.SECONDS)           .ignoring(NoSuchElementException.class);       WebElement element = wait.until(new Function<WebDriver, WebElement>()        {         public WebElement apply(WebDriver driver) {           return driver.findElement(By.xpath("//p[text()='WebDriver']"));         }       });我在FluentWaitClass 上遇到錯誤The type FluentWait is not generic; it cannot be parameterized with arguments <WebDriver>這是我的進口清單：    import java.util.concurrent.TimeUnit;    import org.apache.log4j.Logger;    import org.apache.log4j.PropertyConfigurator;    import org.openqa.selenium.By;    import org.openqa.selenium.NoSuchElementException;    import org.openqa.selenium.WebDriver;    import org.openqa.selenium.WebElement;    import org.openqa.selenium.chrome.ChromeDriver;    import org.openqa.selenium.support.ui.Wait;    import com.google.common.base.Function;有人可以幫我嗎？