HiGHS Solver Installation issue (__ZN5Highs10clearModelEv) not found

[FRS-3]

Hello,

I am trying to install highspy in order to run the PyPSA package.

I am receiving: highs_bindings.cpython-310-darwin.so, 0x0002): symbol not found in flat namespace (__ZN5Highs10clearModelEv)

I have tried uninstalling and installing it, but still, nothing works. Highspy is package 1.5.3 and I am running on Intel macOS Monterey

[rschwarz]

This may be related to #1328

[boeckerb]

unfortunately I have the same error: lib/python3.9/site-packages/highspy/highs_bindings.cpython-39-darwin.so, 0x0002): symbol not found in flat namespace '__ZN5Highs10clearModelEv'

I have a M1 MacBook with Ventura but Python is running as Intel.

Are there any solutions?

[jajhall]

@galabovaa is working on this, but it's hard when things move underneath her

[d3netxer]

I also have an M1 mac and I am receiving the same error with python 3.9 and python 3.10

[kylestahl]

Same issue here on intel mac with Python 3.10

[jajhall]

What happens if you 'pip install highspy'?

[kylestahl]

Install works fine. The error appears on import highspy. I've tried both 1.5.3 and 1.5.2

kylestahl@NADQA0VMD6MOSX ~ % pip install highspy
Collecting highspy
  Using cached highspy-1.5.3-cp310-cp310-macosx_10_9_x86_64.whl (266 kB)
Installing collected packages: highspy
Successfully installed highspy-1.5.3

kylestahl@NADQA0VMD6MOSX ~ % python -c "import highspy"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/kylestahl/anaconda3/lib/python3.10/site-packages/highspy/__init__.py", line 1, in <module>
    from .highs import (
  File "/Users/kylestahl/anaconda3/lib/python3.10/site-packages/highspy/highs.py", line 1, in <module>
    from .highs_bindings import (
ImportError: dlopen(/Users/kylestahl/anaconda3/lib/python3.10/site-packages/highspy/highs_bindings.cpython-310-darwin.so, 0x0002): symbol not found in flat namespace '__ZN5Highs10clearModelEv'
kylestahl@NADQA0VMD6MOSX ~ % 

[galabovaa]

Thank you, apologies that this is taking so long. We are almost ready with the new python build and will update highspy asap.

[kylestahl]

Adding an update here. I've tested Highs one 3 M1 MacBook's and never received this error. Only on an intel Mac. Not saying that is the root cause, just interesting, hope this helps.

[galabovaa]

Indeed, it is an Intel mac issue. I used to have one, but I upgraded to M1 so at the moment I have no way of testing.

[galabovaa]

We have just pushed the latest pre-release version 1.7.1.dev1 to PyPi, would you please check if this works for you, on Intel MacOS?

[kylestahl]

Works for me with 1.7.1.dev1. Thanks!