Conver tf model to uff issue

I used convert-to-uff to conver tf modle to uff format.
it repored this issue
“xxx/python/framework/dtypes.py”, line 126, in as_numpy_dtype

 return _TF_TO_NP[self._type_enum]
 KeyError:20

Converting Preprocessor/map/while/TensorArrayReadV3/Enter as custom op: Enter
attrs={‘is_constant’: b: true
, ‘parallel_iterations’: i: 16
, ‘frame_name’: s: “Preprocessor/map/while/while_context”
, ‘T’: type: DT_RESOURCE
}

It looks like type: DT_RESOURCE doesn’t supported, How can I fix it?

hello,have you ever solved this problem?