setup points to a directory that doesn't exist

[Norgent]

I tried the install which failed with the following trace:

  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
  ╰─> [6 lines of output]
      running egg_info
      writing tcrcube.egg-info/PKG-INFO
      writing dependency_links to tcrcube.egg-info/dependency_links.txt
      writing requirements to tcrcube.egg-info/requires.txt
      writing top-level names to tcrcube.egg-info/top_level.txt
      error: package directory 'tcrcube' does not exist
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.

which I can rectify myself by creating a sub-directory called tcrcube