Getting "'StanModel' object has no attribute 'fit_class' error while using prophet model

[bhatiaaman]

I am trying to use prophet mode on TechM stock
model , model_data = techM.create_prophet_model()

I am getting error
"

AttributeError Traceback (most recent call last)
in ()
----> 1 model , model_data = techM.create_prophet_model()

~/AmanCode/Python/Stocker/stocker.py in create_prophet_model(self, days, resample)
447 stock_history = self.resample(stock_history)
448
--> 449 model.fit(stock_history)
450
451 # Make and predict for next year with future dataframe

~/anaconda3/lib/python3.6/site-packages/fbprophet/forecaster.py in fit(self, df, **kwargs)
834 try:
835 params = model.optimizing(
--> 836 dat, init=stan_init, iter=1e4, **kwargs)
837 except RuntimeError:
838 params = model.optimizing(

~/anaconda3/lib/python3.6/site-packages/pystan/model.py in optimizing(self, data, seed, init, sample_file, algorithm, verbose, as_vector, **kwargs)
470 data = {}
471 seed = pystan.misc._check_seed(seed)
--> 472 fit = self.fit_class(data, seed)
473
474 m_pars = fit._get_param_names()

AttributeError: 'StanModel' object has no attribute 'fit_class'"

I tried updating numpy as well as pystan , but still getting the same error ..

[WillKoehrsen]

That is a problem with either Prophet, numpy, or pystan. Did you try reinstalling with conda?

This thread might be helpful.

[bhatiaaman]

Thanks.. I uninstalled prophet and pystan and then reinstalled using pip with no-cache. It is working fine now

…

On Tue, Feb 6, 2018 at 10:39 PM, Will Koehrsen ***@***.***> wrote: That is a problem with either Prophet, numpy, or pystan. Did you try reinstalling with conda? This thread <facebook/prophet#249> might be helpful. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/Ab3YAvTJgDlI9lDLulLyKrrByu-9fdM2ks5tSIdegaJpZM4R6pC-> .

[WillKoehrsen]

Good to hear. Prophet is relatively new and there are still issues with installation.