How to solve org.openqa.selenium.NoSuchElementException

Question

I am trying to run this program:

import org.openqa.selenium.By; import org.openqa.selenium.WebElement; import org.openqa.selenium.WebDriver; import org.openqa.selenium.htmlunit.HtmlUnitDriver; public class HtmlDriver { public static void main(String[] args) { // Create a new instance of the html unit driver // Notice that the remainder of the code relies on the interface, // not the implementation. WebDriver driver = new HtmlUnitDriver(); // And now use this to visit Google driver.get("http://www.stumbleupon.com/home/"); // Find the text input element by its name WebElement element = driver.findElement(By.name("q")); // Enter something to search for element.sendKeys("Cheese!"); // Now submit the form. WebDriver will find the form for us from the element element.submit(); // Check the title of the page System.out.println("Page title is: " + driver.getPageSource()); } } 

And I get the following exception:

An exception in the stream "main" org.openqa.selenium.NoSuchElementException: Unable to find an element with the name: q System information: os.name: 'Linux', os.arch: 'i386', os.version: '2.6.27- 7-generic ', java.version:' 1.6.0_12 'Driver information: driver.version: HtmlDriver at org.openqa.selenium.htmlunit.HtmlUnitDriver.findElementByName (HtmlUnitDriver.java:651) at org.openqa.selenium.By $ 4.findElement (By.java:148) at org.openqa.selenium.htmlunit.HtmlUnitDriver $ 4.call (HtmlUnitDriver.java:1133) at org.openqa.selenium.htmlunit.HtmlUnitDriver $ 4.call (4.jall) at org.openqa.selenium.htmlunit.HtmlUnitDriver.implicitlyWaitFor (HtmlUnitDriver.java:869) at org.openqa.selenium.htmlunit.HtmlUnitDriver.findElement (HtmlUnitDriver.java:1130) at org.openqa.selenium.htmlunit.HtmlUnitDriver.findElement (HtmlUnitDriver.javahaps30) at com.webdrivertest.HtmlDriver.main (HtmlDriv er.java:20)

Please help me with this.

Answer 1

There is no element on this page with name = "q", hence the NoSuchElementException exception. You took an example from Google and changed the site it went to, but it is still looking for the google search box on the page.

Answer 2

 import org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.htmlunit.HtmlUnitDriver; public class Example { public static void main(String[] args) { // Create a new instance of the html unit driver // Notice that the remainder of the code relies on the interface, // not the implementation. try { WebDriver driver = new FirefoxDriver(); // And now use this to visit Google driver.get("http://www.google.com"); // Find the text input element by its name WebElement element = driver.findElement(By.name("q")); // Enter something to search for element.sendKeys("Cheese!"); // Now submit the form. WebDriver will find the form for us from the element element.submit(); // Check the title of the page System.out.println("Page title is: " + driver.getTitle()); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } } 

When changing HtmlUnitDriver to FirefoxDriver it works!

Answer 3

Using the example from the Selenium website, just like this happens, the test fails with the same NoSuchElementException . It also fails to instantiate a browser emulation, such as BrowserVersion.FIREFOX_3 .

Does HtmlUnitDriver work at all? Is there a need to configure it first?

Update: I am behind a proxy and, unlike drivers that use real browsers, this driver does not know about proxies. It must be manually configured in a test case with a call:

 HtmlUnitDriver.setProxy(host, port); 

I still do not understand how to configure it with a username and password for those proxies that require authentication.

Answer 4

Try defining WebDriver to use Firefox explicitly:

 WebDriver driver = new FirefoxDriver(); 

Answer 5

We Cannot Use Normal WebElement For Submit

Instead, you can try

 WebElement form = driver.findElement(By.id("formid")); //Id of FORM Tag form.submit();