SynthesizerInputError: Invalid transformer 'NoneType' for a primary or alternate key 'subject_id'. Please use 'AnonymizedFaker' or 'RegexGenerator' instead. about sdv

[npatki]

Thanks for updating the issue @louisedry-quinten and glad you were able to get going.

While primary_key is allowed in the PARSynthesizer, it cannot be the same as sequence_key. The reason is that primary_key is assumed to contain uniquely identifiable IDs for every row (such as an index that always increments). Meanwhile, a sequence_key repeats because it is the same for every row inside of a sequence (eg. the stock market symbol in the demo).

[louisedry-quinten]

Found my own mistake after checking the metadata from the tutorial (https://colab.research.google.com/drive/1YLk2uwn8yrSRPy0soEeJwu8Hdk_tGTlE?usp=sharing#scrollTo=D19y1UOOJ-Pv).
"primary_key"should be removed from the metadata before fitting the model.