>>> Emerging (2 of 21) media-fonts/croscorefonts-1.31.0::core-gl-kit
Process Process-26:
Traceback (most recent call last):
  File "/usr/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3.9/site-packages/portage/util/_async/ForkProcess.py", line 156, in _bootstrap
    sys.exit(self._run())
  File "/usr/lib/python3.9/site-packages/_emerge/EbuildFetcher.py", line 251, in _run
    if fetch(self._uri_map, self._settings, fetchonly=self.fetchonly,
  File "/usr/lib/python3.9/site-packages/portage/package/ebuild/fetch.py", line 1225, in fetch
    loc = loc()
  File "/usr/lib/python3.9/site-packages/portage/package/ebuild/fetch.py", line 575, in get_mirror_url
    path = mirror_conf.get_best_supported_layout(filename=filename).get_path(filename)
  File "/usr/lib/python3.9/site-packages/portage/package/ebuild/fetch.py", line 503, in get_best_supported_layout
    for val in self.structure:
TypeError: 'NoneType' object is not iterable
 * Fetch failed for 'media-fonts/croscorefonts-1.31.0', Log file:
 *  '/var/tmp/portage/media-fonts/croscorefonts-1.31.0/temp/build.log'

>>> Failed to emerge media-fonts/croscorefonts-1.31.0, Log file:

>>>  '/var/tmp/portage/media-fonts/croscorefonts-1.31.0/temp/build.log'

 * Messages for package media-fonts/croscorefonts-1.31.0:

 * Fetch failed for 'media-fonts/croscorefonts-1.31.0', Log file:
 *  '/var/tmp/portage/media-fonts/croscorefonts-1.31.0/temp/build.log'