Error when `pip install -e .`

[fangrui10]

pip install -e .
Looking in indexes: http://mirrors.cloud.aliyuncs.com/pypi/simple/
Obtaining file:///mnt/fangrui/Claw-R1
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build editable ... error
  error: subprocess-exited-with-error
  
  × Getting requirements to build editable did not run successfully.
  │ exit code: 1
  ╰─> [33 lines of output]
      /tmp/pip-build-env-d6vug8wl/overlay/lib/python3.10/site-packages/setuptools/dist.py:599: SetuptoolsDeprecationWarning: Invalid dash-separated key 'index-url' in 'easy_install' (setup.cfg), please use the underscore name 'index_url' instead.
      !!
      
              ********************************************************************************
              Usage of dash-separated 'index-url' will not be supported in future
              versions. Please use the underscore name 'index_url' instead.
      
      
              Available configuration options are listed in:
              https://setuptools.pypa.io/en/latest/userguide/declarative_config.html
      
              This deprecation is overdue, please update your project and remove deprecated
              calls to avoid build errors in the future.
      
              See https://github.com/pypa/setuptools/discussions/5011 for details.
              ********************************************************************************
      
      !!
        opt = self._enforce_underscore(opt, section)
      error: Multiple top-level packages discovered in a flat-layout: ['assets', 'claw_r1'].
      
      To avoid accidental inclusion of unwanted files or directories,
      setuptools will not proceed with this build.
      
      If you are trying to create a single distribution with multiple packages
      on purpose, you should not rely on automatic discovery.
      Instead, consider the following options:
      
      1. set up custom discovery (`find` directive with `include` or `exclude`)
      2. use a `src-layout`
      3. explicitly set `py_modules` or `packages` with a list of names
      
      To find more information, look for "package discovery" on setuptools docs.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'file:///mnt/fangrui/Claw-R1' when getting requirements to build editable

[Melmaphother]

Hi, thanks for reporting this issue.

We've updated our installation documentation — Claw-R1 no longer requires pip install -e .
It shares the same environment as verl, so you just need to set up the verl environment and run Claw-R1 directly from the repository root.

Please refer to the latest Installation Guide for details.