Question Argument Null Exception: Value cannot be null parameter name:Source

Code (CSharp):

1.  
2.  
3. private List<charcter> _charactes;
4.  
5. public void ShowCharacter(CharacterName name,  CharacterMood mood)
6.     {
7.        
8.         var character = _characters.FirstOrDefault(x => x.Name == name);
9.         Debug.Log(name);
10.  
11.         if (character == null)
12.         {
13.             var characterObject = Instantiate(_characterPrefab, gameObject.transform, false); //instaniates the character if null
14.             characterObject.name = name.ToString();
15.             character = characterObject.GetComponent<charcter>();  
16.             Debug.Log(character);
17.             _characters.Add(character); //adds x character to the list
18.  
19.             Debug.Log(_characters[0]);
20.         }

Can someone explain why value cannot be null even if it was setup to and some some way around it. Sorry I am still quite a junior developer

 

There's so much misspelling and convention-breaking going on above I give up trying to figure out what is what.

I see you have:

charcter    <------- a type!! Make it uppercase first letter already!

_charactes        <- never initialized

_characters       <- never initialized

character

characterObject

_characterPrefab

Do yourself a favor, fix all the misspellings and choose some better more standard names for goodness sakes!!!

Suggestions:

Types:

Character

instances:

characterInstance

List of characters:

PotentialCharacters

or

PossibleCharacters

etc.

Either way, the answer is still ALWAYS the same:

How to fix a NullReferenceException error

https://forum.unity.com/threads/how-to-fix-a-nullreferenceexception-error.1230297/

Three steps to success:
- Identify what is null <-- any other action taken before this step is WASTED TIME
- Identify why it is null
- Fix that

 

Im aplogize but it's my first time submitting to a forum so i wasn't sure and left out some info which should probably be in

 

Obviously you want to give us the same code you give to your computer, otherwise what's the point of your code when you can speak a language?