# emerge -1av libva-compat

 * IMPORTANT: 2 config files in '/etc/portage' need updating.
 * See the CONFIGURATION FILES and CONFIGURATION FILES UPDATE TOOLS
 * sections of the emerge man page to learn how to update config files.

These are the packages that would be merged, in order:

Calculating dependencies \


[ Results for search key : libva-compat ]
*  media-libs/libva-compat
      Latest version available: 1.8.3-r2
      Latest version installed: 1.8.3-r2
      Size of files: 183 KiB
      Homepage:      https://01.org/linuxmedia/vaapi
      Description:   Video Acceleration (VA) API for Linux
      License:       MIT

*  x11-libs/libva-compat
... done!
Traceback (most recent call last):
  File "/usr/lib/python-exec/python3.10/emerge", line 60, in <module>
    retval = emerge_main()
  File "/usr/lib/python3.10/site-packages/_emerge/main.py", line 1294, in emerge_main
    return run_action(emerge_config)
  File "/usr/lib/python3.10/site-packages/_emerge/actions.py", line 4065, in run_action
    retval = action_build(emerge_config, spinner=spinner)
  File "/usr/lib/python3.10/site-packages/_emerge/actions.py", line 403, in action_build
    success, mydepgraph, favorites = backtrack_depgraph(
  File "/usr/lib/python3.10/site-packages/_emerge/depgraph.py", line 11506, in backtrack_depgraph
    return _backtrack_depgraph(
  File "/usr/lib/python3.10/site-packages/_emerge/depgraph.py", line 11553, in _backtrack_depgraph
    success, favorites = mydepgraph.select_files(myfiles)
  File "/usr/lib/python3.10/site-packages/_emerge/depgraph.py", line 4536, in select_files
    return self._select_files(args)
  File "/usr/lib/python3.10/site-packages/_emerge/depgraph.py", line 4839, in _select_files
    ambiguous_package_name(
  File "/usr/lib/python3.10/site-packages/_emerge/depgraph.py", line 11425, in ambiguous_package_name
    s.output()
  File "/usr/lib/python3.10/site-packages/_emerge/search.py", line 493, in output
    myebuild = db.bintree.getname(mycpv)
  File "/usr/lib/python3.10/site-packages/portage/dbapi/bintree.py", line 2039, in getname
    return self.getname_build_id(
  File "/usr/lib/python3.10/site-packages/portage/dbapi/bintree.py", line 2100, in getname_build_id
    raise InvalidBinaryPackageFormat(binpkg_format)
  File "/usr/lib/python3.10/site-packages/portage/exception.py", line 13, in __init__
    self.value = value[:]
TypeError: 'NoneType' object is not subscriptable