runtime error

Traceback (most recent call last): File "app.py", line 2, in <module> import paddlehub as hub File "/home/user/.local/lib/python3.8/site-packages/paddlehub/__init__.py", line 54, in <module> from paddlehub.compat.task.text_generation_task import TextGenerationTask File "/home/user/.local/lib/python3.8/site-packages/paddlehub/compat/task/text_generation_task.py", line 22, in <module> from paddle.fluid.layers import RNNCell, LSTMCell, rnn, BeamSearchDecoder, dynamic_decode ImportError: cannot import name 'RNNCell' from 'paddle.fluid.layers' (/home/user/.local/lib/python3.8/site-packages/paddle/fluid/layers/__init__.py)

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