ERROR
---ERROR--
Error Type: class 'AttributeError'>
'NoneType' object has no attribute 'astype'Framesummary file core tecogan.py, line 274 in core tecogan>Framesummary file utils.py, line 337 in utils.inference data loader>FrameSummary file utils.py, line 329 inutils.inference data loader.preprocess test>
这是什么原因