## Summary of Installation Issues with AlphaGeometry and Meliad

[pencil-dev]

I am trying to run the full alphageometry solver by following the instructions in the README.md. While the ddar solver works perfectly after some modifications, I am unable to get the full alphageometry mode (which requires the Meliad library) to run.

I have followed all installation steps, including manually cloning the Meliad repository and setting the PYTHONPATH. However, this leads to a series of persistent import errors.

Environment

• Python Version: 3.10.9 (in a virtual environment)
• System: Remote server (Beagle3)

Sequence of Errors and Fixes Attempted

1. Initial Error: ImportError: cannot import name 'decoder_stack' from 'transformer'.

   • This occurred because Python could not find the Meliad library.
   • Fix: I confirmed that I had cloned Meliad into meliad_lib/meliad and correctly set the PYTHONPATH using export PYTHONPATH=$PYTHONPATH:$(pwd)/meliad_lib/meliad.

2. Circular Import Error: After fixing the path, a new error appeared: ImportError: cannot import name 'decoder_stack' from partially initialized module 'transformer' (most likely due to a circular import).

   • This seemed to be caused by a file name conflict, as both AlphaGeometry and Meliad have a file named decoder_stack.py.
   • Fix: I renamed the AlphaGeometry file to ag_decoder_stack.py and updated the corresponding import statement in models.py.

3. Module Not Found Error: The previous fix led to ModuleNotFoundError: No module named 'transformer.decoder_stack'.

   • To diagnose this, I ran a direct import test in a Python shell (import transformer.decoder_stack), which also failed. This confirmed the issue was with the Meliad library itself, not the AlphaGeometry script.
   • Fix: I installed Meliad's own dependencies by running pip install -r meliad_lib/meliad/requirements.txt.

4. NumPy Version Conflict: After installing Meliad's dependencies, a new error occurred: ImportError: numpy.core.multiarray failed to import.

   • This was because Meliad's requirements installed NumPy 2.x, which conflicted with matplotlib and other packages that required NumPy 1.x.
   • Fix: I downgraded NumPy by running pip install --force-reinstall "numpy<2.0".

5. Persistent ModuleNotFoundError: After all these fixes, the error has reverted back to ModuleNotFoundError: No module named 'transformer.decoder_stack'.

Current Status

The purely symbolic DDAR solver works correctly. However, the full alphageometry mode is unusable due to what appears to be a fundamental issue with the way the Meliad library's modules are structured or imported. Despite all troubleshooting, the core problem of importing transformer.decoder_stack persists.

Any help or guidance on how to resolve this final import issue would be greatly appreciated.

[foldl]

AlphaGeometryRE is a cure.