Unable to locate element error in sele : <a class="pointer" ng-click="openLogin()">Log In</a>

now to find Log In I written the code :

WebDriverWait wait = new WebDriverWait(driver, 60);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.linkText("Log In")));
		WebElement logIN = driver.findElement(By.linkText("Log In"));
		logIN.click();

according to me the code that I have written is correct but still I m getting error like  :
no such element: Unable to locate element: {"method":"link text","selector":"Log In"}
  (Session info: chrome=48.0.2564.116)
  (Driver info: chromedriver=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4),platform=Windows NT 6.1 SP1 x86_64) (WARNING: The server did not provide any stack