Numpy version

[Mastomaki]

How to deal with this error? I have Numpy 2.0.0 (chosen automatically by the installation process).

A module that was compiled using NumPy 1.x cannot be run in
NumPy 2.0.0 as it may crash. To support both 1.x and 2.x
versions of NumPy, modules must be compiled with NumPy 2.0.
Some module may need to rebuild instead e.g. with 'pybind11>=2.12'.

If you are a user of the module, the easiest solution will be to
downgrade to 'numpy<2' or try to upgrade the affected module.
We expect that some modules will need time to support NumPy 2.

Traceback (most recent call last):  File "/home/jube/anaconda3/envs/spinetb08/bin/spinetoolbox", line 5, in <module>
    from spinetoolbox.main import main
  File "/home/jube/data/spine/versions/v08/Spine-Toolbox/spinetoolbox/main.py", line 16, in <module>
    import PySide6
  File "/home/jube/anaconda3/envs/spinetb08/lib/python3.11/site-packages/PySide6/__init__.py", line 124, in <module>
    _setupQtDirectories()
  File "/home/jube/anaconda3/envs/spinetb08/lib/python3.11/site-packages/PySide6/__init__.py", line 64, in _setupQtDirectories
    from shiboken6 import Shiboken
  File "/home/jube/anaconda3/envs/spinetb08/lib/python3.11/site-packages/shiboken6/__init__.py", line 27, in <module>
    from shiboken6.Shiboken import *

[soininen]

I just created a fresh Toolbox environment for Python 3.11 and did not encounter the error. I suggest you try the same.

It is actually my go-to solution for these types of issues: scrap the current environment, build a new one from scratch.

[Mastomaki]

The problem was fixed.