java.lang.IllegalArgumentException: keyDown argument must be an instanceof Keys: null error executing Actions Class commands in Selenium Java

Question

I have written Key Class code with Action Object but when I run it, it is throwing exception as pasted below:

java.lang.IllegalArgumentException: keyDown argument must be an instanceof Keys: null

Answer 1

This error message...

 java.lang.IllegalArgumentException: keyDown argument must be an instanceof Keys: null

...implies that the keyDown method is expected to be an instance of Keys but was null

Possibly you have missed the import and you need to add the following import:

import org.openqa.selenium.Keys;