TypeError: reshape() got an unexpected keyword argument 'newshape'

[Jon77Mango]

Is this a mismatch in package versions that other people have experienced?
Can anyone suggest what may have caused this or how to resolve?

---

Steps (on Mac):

Create a new conda environment using python 3.13. (changelogs say this is supported)
Installed latest meridian using pip :- pip install --upgrade google-meridian. (v 1.4.0 I believe)

In Python:
Imported packages
Built data object as previously done in version 1.12
Built MMM object as previously done

prior = prior_distribution.PriorDistribution(
    roi_m = tfp.distributions.LogNormal(roi_m_mu, roi_m_sigma),
    gamma_c = tfp.distributions.Normal(0, 5), 
    alpha_m = tfp.distributions.Beta(alpha_m_alpha, alpha_m_beta) 
)

model_spec = spec.ModelSpec(
    enable_aks=True,
    max_lag = 8,
    media_prior_type = 'roi',
    prior=prior)

Successfully sampled from priors
Error occurs when sampling from posterior; line 1013 identified =. self.posterior_sampler_callable()

Tensorflow version is 2.20.0
Numpy is 2.4.1

[Jon77Mango]

I repeated the above but creating a Python 3.12 instance (tf = 2.20.0 and np 2.4.1 seem to be installed) and had the same issue.

Repeat testing upwards through versions, I can confirm successful posterior sampling up to and including version 1.3.1 with Python 3.12 which is Numpy 2.0.2 I think.
Meridian versions 1.3.2 and 1.4.0 have introduced this error (for me).

Looking at the patch notes, 1.3.2 introduced a variety of things, but notably this was a patch to support python 3.13 and tensorflow 2.20 and I suspect the change to numpy version. - https://github.com/google/meridian/blob/v1.3.2/CHANGELOG.md

[gousesb]

Hello @Jon77Mango ,

Thank you for bringing this issue to our notice. We are working on resolving this and it will be fixed in the next versioned update of Meridian. For now, please pin your NumPy version to a version lower than 2.4.0.

You may track the changes to Meridian in the Change Log.

Feel free to reach out for any further queries or feedback regarding Meridian.

Google Meridian Support Team