Unable to locate element: {"method":"xpath","selector":"//*[#id='identify_email']"} - selenium-webdriver

Question

I am getting the following error:
Unable to locate element:
{"method":"xpath","selector":"//*[#id='identify_email']"}
Even-though the selector that i have written is correct. I have checked it using console. Any idea how to resolve this?
package lbw;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class Locators {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.setProperty("webdriver.chrome.driver",
"C:\\Users\\vicky\\Documents\\chromedriver.exe");
WebDriver driver=new ChromeDriver();
driver.get("https://www.facebook.com");
driver.findElement(By.id("email")).sendKeys("xxxxxxx#gmail.com");
driver.findElement(By.name("pass")).sendKeys("xxxxxxxxxxx");
driver.findElement(By.linkText("Forgotten account?")).click();
driver.findElement(By.xpath("//*[#id=\'identify_email\']")).sendKeys("xxxxxxx#gmail.com");
driver.findElement(By.xpath("//*[#value='Search']")).click();
driver.findElement(By.cssSelector("input[id='send_email']")).click(); /*im getting error in this line. Im try to select a radio. */
System.out.println("Completed");
}
}

Answer 1

You can try with adding implicity wait or WebDriver wait. Here is example of second:
public static void waitForElementPresent(this IWebElement element)
{
try
{
wait.Until(driver => element.Displayed);
}
catch (Exception e)
{
Assert.Fail("The element not found. The exception: \n" + e.GetType());
}
}