diff --git a/src/component/common/SceneHelper.js b/src/component/common/SceneHelper.js
index 7bf41600..4a33804a 100644
--- a/src/component/common/SceneHelper.js
+++ b/src/component/common/SceneHelper.js
@@ -80,7 +80,10 @@ SceneHelper.prototype = {
                             self._skybox.setEnvironmentMap(lights.specular.cubemap);
                         }
 
-                        api.getZr().refresh();
+                        var zr = api.getZr();
+                        if (zr) {
+                          zr.refresh();
+                        }
                     });
             }
             this._lightRoot.add(lights.diffuse);
@@ -180,4 +183,4 @@ SceneHelper.prototype = {
     }
 };
 
-export default SceneHelper;
\ No newline at end of file
+export default SceneHelper;