Object reference issue in Unity

Asked Sep 29 '17 at 03:53

Active Jun 14 '21 at 08:16

Viewed 49 times

I think I am doing right, but I have "Object reference not set to an instance" error.

I have GolfDrive GameObject. Then Golf_drive2 animation is put under it. As shown in the first image.

Then I have a variable currentObject in my script and set Golf_drive2 to control the animation. As shown in the second image.

When I tried to access the animation as follow

var frame = currentObj.GetComponent<Animation>()[currentObj.name].time;

I have "Object reference not set to an instance of an object". What could be wrong?

EDIT: I changed as

var frame = 1.2f;
if (currentObj != null)
    frame = currentObj.GetComponent<Animation>()[currentObj.name].time;

That means currentObj is not null. Then still have the same error.

EDIT 2: I tested the animation as

Animation n = currentObj.GetComponent<Animation>();
if (n == null)
   Debug.Log("I AM NULL");

Nothing is printed, so animation is not null.

edited Jun 14 '21 at 08:16

derHugo

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asked Sep 29 '17 at 03:53

batuman

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Either the currentObj is null or the value of currentObj.GetComponent()[currentObj.name] could be null. – Karthik AMR Sep 29 '17 at 03:55
Which game object has the animation component? – Steve Sep 29 '17 at 03:58
@Steve Golf_drive2 – batuman Sep 29 '17 at 04:04
@KarthikAMR no I can do Debug.Log(currentObj.name) and I see "Golf_drive2" – batuman Sep 29 '17 at 04:05
@batuman can you check the value of currentObj.GetComponent()[currentObj.name] ? – Karthik AMR Sep 29 '17 at 04:06
@batuman does `Golf_drive2` have multiple animation components then? – Steve Sep 29 '17 at 04:08
@Steve no only one. mixamo.com – batuman Sep 29 '17 at 04:09
@KarthikAMR I did Debug.Log("frame " + frame);,nothing come out. – batuman Sep 29 '17 at 04:09
I changed as shown in EDIT, but still have error. – batuman Sep 29 '17 at 04:11
@ZoharPeled not duplicate, that is pure C#. Now I have initialized in the inspectore. – batuman Sep 29 '17 at 04:12
@batuman why are you using an array accessor (the square brackets)? I'm new to Unity but have a lot of experience in C#, but I can't work out why you need to do that. – Steve Sep 29 '17 at 04:12
@Steve i see, let me check – batuman Sep 29 '17 at 04:14
@batuman are you trying to access the [current time of the Animation State](https://docs.unity3d.com/ScriptReference/AnimationState-time.html)? Make sure the animation component has a `Golf_drive2` state that it can access. – Steve Sep 29 '17 at 04:16
@Steve thanks let me check that makes sense. – batuman Sep 29 '17 at 04:17
Perhaps `currentObj.GetComponent()` returns null, or somewhere in the `GetComponent` you get the exception and it bubbles... – Zohar Peled Sep 29 '17 at 04:29
@ZoharPeled I have updated in EDIT2. thanks – batuman Sep 29 '17 at 04:34
Thanks now solved. Somehow I need to assign the name of the animation file as float frame = currentObj.GetComponent()["mixamo.com"].time; – batuman Sep 29 '17 at 04:37

Object reference issue in Unity

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