Ambiguous behaviour c# script(editor vs android device)

Question

 GameObject mainMenu = GameObject.FindGameObjectWithTag("MainMenu");
 Debug.Log(mainMenu.name);

When I run it in the editor it works fine i.e. prints the name of the go, unlike on a device, where it says

UnityException: Tag: MainMenu is not defined.

Why?

Answer 1

Best Answer

Answer by MapuHoB · Apr 04, 2015 at 05:48 PM

The problem was that the tag of the gameObject could not be found on a device. And there it is another of my questions which I've already answered. I'd just delete my question but due to it having already 1 answer I cannot do it so there it is the answer to the question. Other question

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Answer 2

Answer by _joe_ · Apr 04, 2015 at 04:37 PM

That's probably because your MainMenu is not set yet, you either need to wait for it to be set, or slow down your call.

Start by trying to add your code above in a function, and call this function using Invoke. If that works, that means that your Code is just too fast and you can fix it using the Script Execution Order panel.

 void Start(){
  Invoke("MyFunction", 1);
 }
 
 void MyFunction(){
  GameObject mainMenu = GameObject.FindGameObjectWithTag("MainMenu");
  Debug.Log(mainMenu.name);
 }

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MapuHoB · Apr 04, 2015 at 04:42 PM 0

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Thanks for the interest but if it was that obvious I would not ask here about it. I also don't think even if it was this the problem it still isn't supposed to have ambiguous behaviour on the device and the editor. Transfer the answer as a comment if you can because I see it only as a guess of what the problem could be and not a real solution. Also I don't think waiting for 1 sec is a good idea even if this was the problem.

_joe_ · Apr 04, 2015 at 10:19 PM 0

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Having a static manager being called from other start functions would actually create this problem and knowing that i don't know the whole hierarchy i assumed it might be it, adding 1 seconds is just a hack to quickly see if it's a script execution problem. here's a reference: http://answers.unity3d.com/questions/939539/cant-access-a-singletons-instant.html

Ambiguous behaviour c# script(editor vs android device)

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