Requirements are not installing

[umaxfun]

(.venv) ➜  chat git:(master) ✗ pip install -r requirements.txt                                       
...
      fatal error: too many errors emitted, stopping now [-ferror-limit=]
      1 warning and 20 errors generated.
      error: command '/usr/bin/clang' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for greenlet