Getting Problem in a package in Mixed-Poisson and demo-Stokes code

General
1

Hello, everyone, i am trying to learn how can i solve couple system of equation using mixed finite element as in the following demos:

The following errors coming:

image
image1698×267 24.9 KB

I am using Windows11. Also, I am using WSL(Windows Subsystem for Linux) with conda to run dolfinx. Then i am using v0.9.0 of the code. What is the issues with following line in the code:
from dolfinx.la.petsc import create_vector_wrap

I need a minimal basic example of mixed couple equations. Can i please get that??

Thanks in advance!.

2

This problem is resolved. I tried the old version code. Latest version is running fine.

Thanks to Dokken sir for your online beautiful tutorial and demos.