Object reference not set to reference of an object

[Kurt-Dekker]

@MJamPeanut

GameObject.Find("Earth").transform;

IF you ever find yourself writing code like the above ^ ^ ^… just don’t do it!!

Remember the first rule of GameObject.Find():

Do not use GameObject.Find();

More information: Regarding GameObject.Find · UnityTipsRedux

Why cant i find the other objects?

As Spiney says above, reference it by a master script, like this one I might use for my player: using System.Collections; using System.Collections.Generic; using UnityEngine; // @kurtdekker - put this on the root of your player. // It does NOTHING except give you quick access // to other parts of the player. // // For instance, your player hierarchy might look like: // // PlayerPrefab // VisibleAnimatedGeometry // Weapon1 // Weapon2 // DialogPopup public class …

In general, DO NOT use Find-like or GetComponent/AddComponent-like methods unless there truly is no other way, eg, dynamic runtime discovery of arbitrary objects. These mechanisms are for extremely-advanced use ONLY.

If something is built into your scene or prefab, make a script and drag the reference(s) in. That will let you experience the highest rate of The Unity Way™ success of accessing things in your game.

“Stop playing ‘Where’s GameWaldo’ and drag it in already!”

Here’s why all this stuff is CRAZY code:

SetActive(false) on Start() only working on Unity editor, but not on build target

Definitely get away from all that FindTag silliness. There is absolutely NO reason you need that. Put the Tutorial script on its own object, drag all the items into an array, just like you do for any other Unity dragged-in reference, then make an API on the tutorial that lets you show only one of them. If you have an array: [Header( "Drag each tutorial part in here in order.")] public GameObject[] AllTutorialPartsInOrder; then a function to switch them on one at a time is: public void Selec…