Crash on AnimationClip.SampleAnimation()

I'm using AnimationClip.SampleAnimation(GameObject, float) on Unity 5 and it works fine in Editor but when I build the game it crashes on executing that line of code!
Doe's anyone have any idea about this bug?
this is my code:

Code (CSharp):

1. public class EntityAnimationHandleTesterComponent : MonoBehaviour
2. {
3.     [SerializeField]
4.     private AnimationClip clip_;
5.  
6.     void Update()
7.     {
8.         if (Input.GetKeyDown(KeyCode.A))
9.         {
10.             Debug.LogWarning("Before");
11.             clip_.SampleAnimation(gameObject, 1f);
12.             Debug.LogWarning("After");
13.         }
14.  
15.     }
16. }

clip_ is assigned in inspector window and the gameobject contains an animator that have clip in it. When I press the 'A' button in build, the game crashes! the last log in crash log is 'Before' and this is it's stack trace :

========== OUTPUTING STACK TRACE ==================

0146D582 (Build) UnityEngine::Animation::CreateAnimatorGenericBindings
014AE6A5 (Build) Animator::SetupControllerMecanimDataSet
014AF1CF (Build) Animator::Sample
014C3C19 (Build) SampleAnimation
01340815 (Build) AnimationClip_CUSTOM_SampleAnimation
060F5302 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.AnimationClip:SampleAnimation (UnityEngine.GameObject,single)
060F4D82 (Mono JIT Code) [D:\rza\Workspace\Tests\SampleAnimationTest\New Unity Project\Assets\AnimationHandleTest\EntityAnimationHandleTesterComponent.cs:26] EntityAnimationHandleTesterComponent:Update ()
060DAAAF (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
100F054D (mono) mono_set_defaults
1005D812 (mono) mono_runtime_invoke
0113AABE (Build) scripting_method_invoke
0120100C (Build) ScriptingInvocationNoArgs::Invoke
01200E15 (Build) ScriptingInvocation::Invoke
01128B4A (Build) MonoBehaviour::CallMethodIfAvailable
0112A788 (Build) MonoBehaviour::Update
011B9D21 (Build) PlayerLoop
0126D6E5 (Build) PlayerMainWndProc
0126F601 (Build) PlayerWinMain
015F48A8 (Build) WinMain
0162BF99 (Build) _get_printf_count_output
75A7919F (KERNEL32) BaseThreadInitThunk
77A3A8CB (ntdll) RtlInitializeExceptionChain
77A3A8A1 (ntdll) RtlInitializeExceptionChain

========== END OF STACKTRACE ===========

**** Crash! ****

 

me too!

 

Same here. Only when I call

Code (CSharp):

1. this.clip.SampleAnimation( this.gameObject, this.currentAnimationPos );

in my script -- when I remove this line, everything runs like a charm. This is quite frustrating since I depend on this method and I don't know what a workaround would be. What I need is a possibility for putting my GameObject to position X along a predefined 3d animation trail. Any ideas?

btw: I connected with Visual Studio and got the crash inside of UnityEngine::Animation::CreateAnimatorGenericBindings. Here's the stack trace, in case this helps:

 

@iko79 Do you use Unity 5?

 

I do. Unity 5.0.1f1. However, I found a way to work around the issue. In my case, all I need is the animation clip itself. I'm not at all familiar with the animation system, to be honest I find it absolutely confusing, so I actually thought I have to have an Animator component in my GameObject, with it's Controller field set to my AnimatorController, which in turn is containing the AnimationClip. So in my script I tried to access the clip as follows:

Code (CSharp):

1. this.clip = this.animator.runtimeAnimatorController.animationClips[0];

which worked in the editor but caused the crash in the build. Since the only thing I have to do is sampling the animation in order to place the GameObject on a position on the curve, I tried to delete all that stuff. So I deleted the AnimatorController and removed the Animator component, instead I put a public AnimationClip field in my script and assigned the clip directly in the Inspector, by dragging it from the Assets. I'm not sure if this solves your issue, but it worked for me since I only needed the clip and it seems to work without all the other stuff. Hope it helps.

 

I did the same. I have some public AnimationClip fields in my script and assign the clips in editor so this shouldn't be the source of problem.So I tested your removing AnimatorComponent. It doesn't crash but the problem is it's not working anymore!
It seems AnimationClip.SampleAnimation() doesn't work in the absence of AnimatorComponent.
Does it work for you?

 

Yes it does. You doublechecked your clip and all your keyframes were still present? Because I noticed my animation getting lost at random occasions. No idea what caused this, I did nothing, really, but suddenly the animation clip was empty. I had to restore the files by reverting changes with GIT several times (luckily I'm using versioning), otherwise I would have had to manually rebuild the whole animation. This animation system is a mess, is my humble opinion.

 

I checked a lot of cases to understand the difference between my case and yours and I think found it. There are 2 types of animation curve in Unity. normal curves like position and rotation and other value fields use FloatCurve but some special things like Sprites use ReferenceValueCurve. Removing AnimatorComponent solves this bug for FloatCurves but it's not working for ReferenceValueCurves!
This is bad news for me since my most common use of this system is for Sprites.

 

We've encountered this issue as well, in iOS and Android builds. Works ok inside the Windows and Mac Editors though. It would be nice to know if they know of this crash and if/when they're gonna fix it !

 

The bug is fixed in Unity 5.2

 

Yep, I can confirm 5.2 fixed it for us too, at least on iOS where I tested