Question by Griffo · Dec 18, 2015 at 09:20 AM · error build xcode build error

Xcode build error ..

Hi,

When trying to build to iOS with Xcode as it builds to the phone then starts to run I get the below error.

Does anyone know what this means please?

alt text

screen-shot.jpg (404.4 kB)

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fafase · Dec 18, 2015 at 09:28 AM 0

It looks like you have a push_back method on the TheLab class that is running a NRE. Does it run fine in Editor?

Griffo fafase · Dec 18, 2015 at 09:29 AM 0

Yes it runs fine in editor ..

fafase Griffo · Dec 18, 2015 at 09:36 AM 0

and it shoots while loading the game or you are doing some actions before it shows up?

You could decorate the method with a bunch of :

  Debug.Log("variableName is "+ variable == null);

So you could track if for some reasons, a reference is not behaving nicely.

It has happened that in Editor it goes fine because Unity runs things in a specific order. But once building the order is different and something ends up being not ready while you expect it to be.

That happens quite often with Awake since you cannot predict the order if not explicitly stated in the script execution order. I often end up having one guy controlling all subs and calling Init methods instead of relying on Awake. I can then pass reference between subs and make sure that if sub A needs sub B then I run sub B first and pass it as argument.

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fafase fafase · Dec 18, 2015 at 10:48 AM 0

So I would advise to place debugs in your method and create a more controlled system.

Instead of having all classes using Awake and calling for other script in Awake, have a controller script that gets a reference to all those sub script. Then turn your Awake into Init and call them from the controller. If one class requires info from another, pass it from the controller. This way you will also remove dependencies between classes using interfaces for instance.

But first I would definitely place Debug all over and print out states of variable until you figure out which and why.

Griffo fafase · Dec 18, 2015 at 10:57 AM 0

Ok .. I'll try .. Off to work now for 6 hours :( so I'll give it a go later, thanks.

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