Where is label 2.19.1.1?

[KathyGCY]

Describe the bug

I use orbit package and that pinned pystan to 2.19.1.1 in this requirement file here

Describe your system

-python 3.10

[bob-carpenter]

Assuming this is just asking where to get 2.19.1.1, see https://pypi.org/project/pystan/#history

[ahartikainen]

Hi, the source for pystan 2.x can be found in https://github.com/stan-dev/pystan2

[ahartikainen]

Also, latest orbit uses cmdstanpy, so have you considered updating your orbit version?

https://pypi.org/project/orbit-ml/

pip install orbit-ml -U