How to play animation in Dae format? about away3d HOT 9 CLOSED

loader = new Loader3D();
		loader.addEventListener(LoaderEvent.RESOURCE_COMPLETE, (event) -> {
			view3d.scene.addChild(loader);
			loader.scale(300);
			loader.y += 100;
			animator = new SkeletonAnimator(animationSet, skeleton);
			mesh.animator = animator;
			animator.play("node_0");
			animator.autoUpdate = true;
		});

TypeError: Cannot read property 'orientation' of null
    at away3d_animators_SkeletonAnimator.localToGlobalPose (AtalsRender.js:7492)
    at away3d_animators_SkeletonAnimator.updateGlobalProperties (AtalsRender.js:7232)
    at away3d_animators_SkeletonAnimator.setRenderState (AtalsRender.js:7172)
    at away3d_materials_passes_DepthMapPass.updateAnimationState (AtalsRender.js:43722)
    at away3d_materials_TextureMaterial.renderDepth (AtalsRender.js:36706)
    at away3d_core_render_DepthRenderer.drawRenderables (AtalsRender.js:21737)
    at away3d_core_render_DepthRenderer.draw (AtalsRender.js:21705)
    at away3d_core_render_DepthRenderer.executeRender (AtalsRender.js:21359)
    at away3d_core_render_DepthRenderer.render (AtalsRender.js:21320)
    at away3d_lights_shadowmaps_DirectionalShadowMapper.drawDepthMap (AtalsRender.js:25104)