Unknown parameter variable theano, can’t get the package to work on Mac

  pymc3, python-3.x, tensor, theano

I have some issues with theano package on my mac. I am getting the following error.

File "/Users/model.py", line 355, in train
    train_model = theano.function(

  File "/Applications/anaconda3/lib/python3.8/site-packages/theano/compile/function/__init__.py", line 337, in function
    fn = pfunc(

  File "/Applications/anaconda3/lib/python3.8/site-packages/theano/compile/function/pfunc.py", line 426, in pfunc
    inputs = [

  File "/Applications/anaconda3/lib/python3.8/site-packages/theano/compile/function/pfunc.py", line 427, in <listcomp>
    _pfunc_param_to_in(p, allow_downcast=allow_input_downcast) for p in params

  File "/Applications/anaconda3/lib/python3.8/site-packages/theano/compile/function/pfunc.py", line 543, in _pfunc_param_to_in
    raise TypeError(f"Unknown parameter type: {type(param)}")

TypeError: Unknown parameter type: <class 'theano.tensor.var.TensorVariable'>

I already tried setting this:

theano.config.floatX = 'float64'

but didn’t help unfortunately.

I have the following versions of the packages.
python version 3.8.8
theano version 1.0.5
pymc3 version 3.11.1

Source: Python-3x Questions