PermissionError: [WinError 32] 另一个程序正在使用此文件，进程无法访问。: ‘C:\tmp\tmpp2jgciex\log

onnx转rknn出现这样的问题，请教一下怎么解决这问题：

D:\anaconda3\envs\rknnpy36\python.exe C:/Users/86157/Downloads/yolov5_for_rknn-master/yolov5_for_rknn-master/yolov5_original/onnx2rknn.py
Traceback (most recent call last):
  File "C:/Users/86157/Downloads/yolov5_for_rknn-master/yolov5_for_rknn-master/yolov5_original/onnx2rknn.py", line 18, in
    rknn = RKNN()
  File "D:\anaconda3\envs\rknnpy36\lib\site-packages\rknn\api\rknn.py", line 68, in __init__
    self.config()
  File "D:\anaconda3\envs\rknnpy36\lib\site-packages\rknn\api\rknn.py", line 732, in config
    return self.rknn_base.config(args)
  File "rknn\api\rknn_base.py", line 74, in rknn.api.rknn_base.RKNNBase.config
  File "D:\anaconda3\envs\rknnpy36\lib\site-packages\rknn\base\acuitylib\__init__.py", line 1, in
    from acuitylib.optimize.optimizer import Optimizer
  File "D:\anaconda3\envs\rknnpy36\lib\site-packages\rknn\base\acuitylib\__init__.py", line 10, in
    from acuitylib.vsi_nn import VSInn
  File "rknn\base\acuitylib\vsi_nn.py", line 11, in init rknn.base.acuitylib.vsi_nn
  File "rknn\base\acuitylib\app\importer\import_tensorflow.py", line 8, in init rknn.base.acuitylib.app.importer.import_tensorflow
  File "rknn\base\acuitylib\converter\convert_tf.py", line 11, in init rknn.base.acuitylib.converter.convert_tf
  File "rknn\base\acuitylib\converter\tensorflowloader.py", line 11, in init rknn.base.acuitylib.converter.tensorflowloader
  File "rknn\base\acuitylib\converter\tensor_model.py", line 7, in init rknn.base.acuitylib.converter.tensor_model
  File "rknn\base\acuitylib\converter\onnx_util.py", line 5, in init rknn.base.acuitylib.converter.onnx_util
ImportError: cannot import name optimizer
Traceback (most recent call last):
  File "D:\anaconda3\envs\rknnpy36\lib\weakref.py", line 624, in _exitfunc
    f()
  File "D:\anaconda3\envs\rknnpy36\lib\weakref.py", line 548, in __call__
    return info.func(*info.args, **(info.kwargs or {}))
  File "D:\anaconda3\envs\rknnpy36\lib\tempfile.py", line 799, in _cleanup
    _shutil.rmtree(name)
  File "D:\anaconda3\envs\rknnpy36\lib\shutil.py", line 500, in rmtree
    return _rmtree_unsafe(path, onerror)
  File "D:\anaconda3\envs\rknnpy36\lib\shutil.py", line 395, in _rmtree_unsafe
    onerror(os.unlink, fullname, sys.exc_info())
  File "D:\anaconda3\envs\rknnpy36\lib\shutil.py", line 393, in _rmtree_unsafe
    os.unlink(fullname)
PermissionError: [WinError 32] 另一个程序正在使用此文件，进程无法访问。: 'C:\\tmp\\tmpp2jgciex\\log_feedback_to_the_rknn_toolkit_dev_team.log'

进程已结束,退出代码1