From 648e038d60a8f0d8c15dc8d62b81bcc22a320aeb Mon Sep 17 00:00:00 2001
From: luzhuang <364439895@qq.com>
Date: Wed, 1 Sep 2021 19:17:07 +0800
Subject: [PATCH] fix: bugfix

---
 packages/loader/src/scene-loader/resources/GLTFResource.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/loader/src/scene-loader/resources/GLTFResource.ts b/packages/loader/src/scene-loader/resources/GLTFResource.ts
index d77417b577..04334b13a3 100644
--- a/packages/loader/src/scene-loader/resources/GLTFResource.ts
+++ b/packages/loader/src/scene-loader/resources/GLTFResource.ts
@@ -113,7 +113,7 @@ export class GLTFResource extends SchemaResource {
             newMaterial.push(matStructure);
           });
         });
-        const loadAttachedController = animatorControllerLoadPromise.then((res) => {
+        const loadAttachedController = animatorControllerLoadPromise ? animatorControllerLoadPromise.then((res) => {
           const { animatorControllers } = result.structure.props;
           const controllerStructure = res.structure;
           const controllerResource = res.resources[controllerStructure.index];
@@ -129,7 +129,7 @@ export class GLTFResource extends SchemaResource {
             }
           }
           animatorControllers.push(controllerStructure);
-        });
+        }) : Promise.resolve();
         Promise.all([loadAttachedMaterial, loadAttachedController]).then(() => {
           resolve(result);
         });