Troube testing the NLU model

Hello everyone , I’m trying to test my NLU model with the commands :

  1. rasa test nlu --cross-validation
  2. rasa test nlu

It goes on and on and then it throws this error :

/root/virt/lib/python3.6/site-packages/tensorflow_core/python/data/ops/ generator_next_fn for ret_t, shape in zip(flat_values, flattened_shapes):

TypeError: zip argument #1 must support iteration

And I don’t know how to fix it , does anyone have a clue please ?

What version of Rasa are you using?

Can you run rasa shell nlu without errors?