koobas.hobune.stream
NullReferenceException
Let's say that I have a public static List in one script.
public static List<String> ClientNames;
Calling it from other script in specifically OnGUI() function gives me NullReferenceException.
ScriptName.ClientNames.Add("Rafael");
It returns to me: NullReferenceException: Object reference not set to an instance of an object
I really have to do: ScriptName instanceName = GetComponent();?
Are you calling a javascript from a c# script or vice-versa... ? If you are there are access issues between scripts..
I'm already aware of that, I just use C#, thanks for the note. =)
As it turns out, any "reference" value can end up pointing at nothing, which your system calls "null". If you try to access a reference which is currently null, your computer will warn you that you're trying to access something which doesn't exist. You need to make sure it exists before accessing it.
It's important to distinguish two actions:
Declaring a variable gives it a name
Assigning a variable gives it a value
You've declared, but you haven't assigned.
ClientNames = new List<String>();
You can do this all at once, too:
public static List<String> ClientNames = new List<String>();
You are right, and I'm ashamed because I forgot a simple thing like that. Actually I did a test code before and I assigned the variable before, but then I erased everything and now it turns out that maybe I need glasses haha, just kidding. Thank you rutter!
