ModelViewer init Crash only in release build

[yubing1015]

I am trying to show a 3d view in my app. It works completely well in debug build. But crashed with the release version.
Could anyone please help have a look? Thanks.

After surface created, I did
manipulator = Manipulator.Builder().orbitHomePosition(0.0f, 0.9f, 2.2f).targetPosition(0f, 0f, 0f).viewport(width, height).build(Manipulator.Mode.ORBIT)
modelViewer = ModelViewer(this, manipulator = manipulator)

The call stack is like
25500 2023/11/14 10:03:12.413421 2587.1828 141 MGUA ALD CRSH 430 log fatal verbose 2 DEBUG[21543]: Abort message: 'No pending exception expected: java.lang.NoSuchFieldError: no "Z" field "doubleSided" in class "Lcom/google/android/filament/gltfio/MaterialProvider$MaterialKey;" or its superclasses
at void com.google.android.filament.gltfio.MaterialProvider$MaterialKey.nGlobalInit() (MaterialProvider.java:-2)
at void com.google.android.filament.gltfio.MaterialProvider$MaterialKey.() (MaterialProvider.java:1)
at long com.google.android.filament.gltfio.AssetLoader.nCreateAssetLoader(long, java.lang.Object, long) (AssetLoader.java:-2)
at void com.google.android.filament.gltfio.AssetLoader.(com.google.android.filament.Engine, com.google.android.filament.gltfio.MaterialProvider, com.google.android.filament.EntityManager) (AssetLoader.java:4)
at void com.google.android.filament.utils.ModelViewer.(android.view.SurfaceView, com.google.android.filament.Engine, com.google.android.filament.android.UiHelper, com.google.android.filament.utils.Manipulator, int) (ModelViewer.kt:20)
at void

[romainguy]

It's probably due to ProGuard/R8 and a missing rule. It'll be easy to fix. In the meantime turning off minification in your build file should fix the issue.

[yubing1015]

Thank you very much.

[romainguy]

Hm our code properly preserves the field:

@UsedByNative("MaterialKey.cpp")
public static class MaterialKey {
@UsedByNative("MaterialKey.cpp")
public boolean doubleSided;

Do you compile Filament yourself? If so make sure to use our Proguard rules or to tell Proguard to preserve all Filament APIs.

[yubing1015]

I didn't compile Filament. I used verion 1.31.0.