NullExceptionError Help

Code (CSharp):

1.  
2. _player = GameObject.FindWithTag("Player").GetComponent<Player>();
3. if (_player == null)
4.             Debug.LogWarning("Enemy Player is null.");
5. _playerOne = GameObject.FindWithTag("Player One").GetComponent<Player>();
6. if (_playerOne == null)
7.             Debug.LogWarning("Enemy Player One is null.");
8. _playerTwo = GameObject.FindWithTag("Player Two").GetComponent<Player>();
9. if (_playerTwo == null)
10.             Debug.LogWarning("Enemy Player Two is null.");
11.  

This is my code. I have two scenes in my game, one where there is a single player with the tag player, and the other where I have two players with the respective other tags. thing is, I've discovered after a lo of debugging that the code runs till these lines, then a NullExceptionError occurs and the code begins from the, well beginning. How can I make them iterate over, for I was under the assumption that even if a null value came, the value will just be set as null and the game will continue to the next line. What exactly is the problem here?

 

Code (CSharp):

1. _player = GameObject.FindWithTag("Player").GetComponent<Player>();

That line right there. If GameObject.FindWithTag() doesn't find anything it will be null. Trying to call GetComponent() on a null object will give you a null reference exception.

Code (CSharp):

1. _player = GameObject.FindWithTag("Player");
2.  
3. if (!_player)//Does the same as _player == null
4.      Debug.LogWarning("Enemy Player is null.");

 

My mind totally skipped that! Thanks a lot, I appreciate it.