Pystan -- Library\\mingw-w64\\bin\\gcc.exe' 失败，退出代码为 1

Question

I would like to test orbit-ml package but I have same issues with pystan My settings are: Windows10, Anacaonda, Python 3.7 (or 3.8) When I run this demo code:

import pystan
model_code = 'parameters {real y;} model {y ~ normal(0,1);}'
model = pystan.StanModel(model_code=model_code)
y = model.sampling().extract()['y']
y.mean()  # with luck the result will be near 0

I had this error: CompileError: command 'C:\Users\XXX\Anaconda3\envs\orbit-ml-py37\Library\mingw-w64\bin\gcc.exe' failed with exit code 1

I installed orbit-ml following the official documentantion. I had problem with pystan (MSVC compiler is not supported) and I followed step by step the documentation link

After that no warning on MSVC but the code stops with this error:

CompileError: command 'C:\Users\XXX\Anaconda3\envs\orbit-ml-py37\Library\mingw-w64\bin\gcc.exe' failed with exit code 1

I don't understand. Do you have any suggestions? All the best

Answer 1

I am facing the very same issue. However, I haven't been able to solve it. Even if I look at the changes with new releases of pystan , I am getting an error which does not allow me to install stan. "ERROR: No matching distribution found for stan"

Answer 2

There seems to be some dependency related problem. Solving this could be a hard thing. If you want to get started, try the following

Observations

From your code snippet, I have observed the following:

1. import pystan does not work in recent versions (as per reference )
2. There could be issues with StanModel in the libraray. Check reference

Suggestions

Few alternatives to get to started with other approaches by bypassing the process are:

1. Try google colab to get started. Go to Google colab and experiment there
2. Try a linux/ubuntu VM using docker and install there.