NullReferenceException: Object reference not set to an instance of an object

Unity Engine
,
1

Hi, I’m trying to add a function that is in another script and arrow it on a button, but it is giving this error,
can you help me?

    public Button previous;
    public ScriptName MyScript;
    void Start() {
        previous.GetComponent<ScriptName>().objectss();
    }
2

It probably means that previous.GetComponent() returned null, or you forgot to connect previous in the Inspector.

3

the script is added to the inspector, the error persists

4

Try this:

public Button previous;
public ScriptName MyScript;
void Start() {
        Debug.Log("Previous is " + previous.name);
        ScriptName sn = previous.GetComponent<ScriptName>();
        Debug.Log("scriptname is " + sn.name);
        Debug.Log("Trying access: " + sn.Objectss().name);
}

And see where it breaks. That’s where you have a missing object

1 Like
5

Is all these debugging necessary?
because when I add in my version some errors
my version is 5.6
The .' operator cannot be applied to operand of type void’

6

No, you could just write flawless code. Why don’t you?

You should show the offending line, that looks to be a simple typo. Be advised that whatever I write here is off the top of my head, and not tested in any way. That’s where you come in :slight_smile:

7

I think for this occasion this has no solution, because I’ve tried the maximum I know