c# - 'ElementNotVisibleException:element not interactable' error locating Google Search button even though element was waited for on Google Home Page

Question

So I have a Selenium test that waits for a button to load up before it interacts with it.

As seen in my code, I have implemented it so that the driver will wait 14 seconds (14 is just a random number), or it will move on if the element is located before 14 seconds.

However, even after I have waited for element to load, and I try to interact with it (using Click() method), I get this error showing that the element is not 'interactable'.

The funny thing is, this actually works some times- where the element is indeed interactable- but not other times.

public void TestChromeDriverMinimalWaitTime()
        {
            driver.Navigate().GoToUrl("http://www.google.com");
            //find search bar and enter text
            driver.FindElement(By.Name("q")).SendKeys("Selenium");
            //wait 14 seconds max..
            WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(14));
            //...unless button element is found
            IWebElement waitUntil = wait.Until(x => x.FindElement(By.Name("btnK")));
            //once found, click the button
            waitUntil.Click();
            //wait 4 secs till this test method ends
            Thread.Sleep(2000);
        }

This is the error that I get: Line 53 is the line that says: waitUntil.Click();

Revised working code based on @DebanjanB's answer:

public void TestChromeDriverMinimalWaitTime()
        {
            driver.Navigate().GoToUrl("http://www.google.com");
            //find search bar and enter text
            driver.FindElement(By.Name("q")).SendKeys("Selenium");
            //wait 14 seconds max..unless button element is found
            IWebElement element = new WebDriverWait(driver, TimeSpan.FromSeconds(14)).Until(ExpectedConditions.ElementToBeClickable(By.Name("btnK")));    
            //click enter
            element.SendKeys(Keys.Return);
            Thread.Sleep(2000);
        }

Answer 1

With it working sometimes, it seems like a timing issue. Perhaps the element starts out disabled, and is enabled after some tiny delay, or an event. Try adding a delay just before .Click. You might also check the state of the button element to see if it is disabled.