Error while running mrsimulator for the first time

[NMRTeamTBI]

Dear,
after installing mrsimulator on the MacOSX machine and testing using the script your propose in your page I face the following error:

raceback (most recent call last):
File "/Users/cyrilcharlier/Desktop/test_mrsim.py", line 2, in
from mrsimulator import Simulator, SpinSystem, Site
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/mrsimulator/init.py", line 36, in
from .spin_system import Site # lgtm [py/import-own-module] # noqa:F401
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/mrsimulator/spin_system/init.py", line 10, in
from mrsimulator.transition import Transition
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/mrsimulator/transition/init.py", line 1, in
from .base import Transition # lgtm [py/import-own-module] # noqa: F401
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/mrsimulator/transition/base.py", line 5, in
from mrsimulator.utils.parseable import Parseable
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/mrsimulator/utils/parseable.py", line 8, in
from csdmpy.units import string_to_quantity
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/csdmpy/init.py", line 8, in
from .csdm import as_dependent_variable # NOQA
File "/Users/cyrilcharlier/opt/anaconda3/envs/nmrsim/lib/python3.9/site-packages/csdmpy/csdm.py", line 8, in
from astropy.units.quantity import Quantity
ModuleNotFoundError: No module named 'astropy'

Installation was carried out locally within an new environment with python 3.9

Do you have any idea?
Thanks very much for your help

Cyril Charlier

[deepanshs]

Hi Cyril,

It appears that you have missing libraries. It is a known issue and we will have a fix for it in the upcoming release. In the meanwhile, you install the following:

pip install astropy "pydantic<2"

Let me know if you see other issues with the installation.

Best,
Deepansh

[NMRTeamTBI]

Thanks Deepansh. It did indeed fix the problem.
Best,
Cyril