Unable to install poetry env of LightRAG

[zjffdu]

Hi, I pulled the latest code of LightRAG to my local and tried to create poetry env, but failed to install torch, got the following error, can anyone help this? Thanks

(base) ➜  LightRAG git:(main) ✗ poetry install     
Installing dependencies from lock file

Package operations: 23 installs, 0 updates, 0 removals

  - Installing torch (2.3.1): Failed

  RuntimeError

  Unable to find installation candidates for torch (2.3.1)

  at ~/Library/Application Support/pypoetry/venv/lib/python3.11/site-packages/poetry/installation/chooser.py:74 in choose_for
       70│ 
       71│             links.append(link)
       72│ 
       73│         if not links:
    →  74│             raise RuntimeError(f"Unable to find installation candidates for {package}")
       75│ 
       76│         # Get the best link
       77│         chosen = max(links, key=lambda link: self._sort_key(package, link))
       78│ 

Cannot install torch.

[liyin2015]

@zjffdu Can you try poetry lock and then poetry install? The poetry lock sometimes can take very long, but be patient to wait for it. We will update our lock file next so this problem wont appear again

[zjffdu]

Thanks @liyin2015 but the issue still exists.

(base) ➜  LightRAG git:(main) ✗ poetry lock
Updating dependencies
Resolving dependencies... (45.3s)

Writing lock file
(base) ➜  LightRAG git:(main) ✗ poetry install
Installing dependencies from lock file

Package operations: 23 installs, 4 updates, 0 removals

  - Updating jupyterlab-server (2.27.2 -> 2.27.3)
  - Updating setuptools (70.3.0 -> 71.0.0)
  - Updating huggingface-hub (0.23.4 -> 0.23.5)
  - Updating sphinx (7.4.4 -> 7.4.5)
  - Installing torch (2.3.1): Failed

  RuntimeError

  Unable to find installation candidates for torch (2.3.1)

  at ~/Library/Application Support/pypoetry/venv/lib/python3.11/site-packages/poetry/installation/chooser.py:74 in choose_for
       70│ 
       71│             links.append(link)
       72│ 
       73│         if not links:
    →  74│             raise RuntimeError(f"Unable to find installation candidates for {package}")
       75│ 
       76│         # Get the best link
       77│         chosen = max(links, key=lambda link: self._sort_key(package, link))
       78│ 

Cannot install torch.

[liyin2015]

Try the following

1. update your poetry
   This is my version

poetry --version
Poetry (version 1.8.3)

The next you can try: poetry self update because it shows unable to find torch which is the latest version

2. If 1 does not work, use torch = ">=2.0, <3.0" in the poetry file so that it can try to find older version, or use pip install torch

[zjffdu]

Approach 2 doesn't work either, it still tries to install 2.3.1. I have to explicitly to change it to 2.2.2

torch = "2.2.2"

Now it works. Thanks @liyin2015