AttributeError: 'Viewer' object has no attribute '_pyrender_viewer'

[YMIR-GAO]

My python version is 3.12.8. I tried the viewer case as document and got the following error. Any solution for that? thanks.

cam_pose = scene.viewer.camera_pose()
Traceback (most recent call last):
File "", line 1, in
File "/Users/gao/.pixi/envs/default/lib/python3.12/site-packages/genesis/vis/viewer.py", line 193, in camera_pose
return np.array(self._pyrender_viewer._trackball._n_pose)
^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Viewer' object has no attribute '_pyrender_viewer'