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When running the example notebook "tutorial.ipynb" from the Example Scripts, from the very first line, this is the error that appears:

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
Cell In[4], line 1
----> 1 import illustris_python as il
      2 import numpy as np

File ~/illustris_python/__init__.py:3
      1 __all__ = ["groupcat", "snapshot", "util", "sublink", "lhalotree"]
----> 3 from . import *

File ~/illustris_python/groupcat.py:8
      6 from os.path import isfile
      7 import numpy as np
----> 8 import h5py
     11 def gcPath(basePath, snapNum, chunkNum=0):
     12     """ Return absolute path to a group catalog HDF5 file (modify as needed). """

File /opt/conda/lib/python3.11/site-packages/h5py/__init__.py:25
     19 # --- Library setup -----------------------------------------------------------
     20 
     21 # When importing from the root of the unpacked tarball or git checkout,
     22 # Python sees the "h5py" source directory and tries to load it, which fails.
     23 # We tried working around this by using "package_dir" but that breaks Cython.
     24 try:
---> 25     from . import _errors
     26 except ImportError:
     27     import os.path as _op

File h5py/_errors.pyx:1, in init h5py._errors()

ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

The package illustrious_python doesn't load properly and the rest of the script cannot be run. Is there a way to fix this?
Thank you in advance.

I guess that you have significantly changed the python environment, i.e. installing new versions of key packages.

I can reset your Lab to default, erasing everything that is there, which will fix the problem. Let me know if you would like me to do this.

Hi Dr. Nelson, yes please reset my Lab to default if possible. Thank you so much