It is difficult to guess without seeing any model code not the complete error message, but here are some ideas:
- issues retrieving the log likelihood. see DE-Metropolis with blackbox likelihood does not terminate
- issues with densitydist and multiple observations: see Blackbox likelihood example doesn't work
- version issues: if mixing pip and conda, it could be that even when a newer version is installed, python is actually importing the old version anyways. check
pm.__version__andaz.__version__within the same code the model is executed - issues with coordinates: it could be if using dims and coords that a the length of the array of coordinate values for a given dim does not match the size of the dimension. The error should not mention theano in this case but who knows
- something else entirely: I don’t think we will be able to help any further than this without the code or a reduced version of it reproducing the same issue