Docker builds with whitenoise crash from missing select2 file

[mikkonie]

It seems something has been broken in django-autocomplete-light and its select2 dependency, causing whitenoise to fail. The full error can be seen in comments.

There is some discussion here about workaround for these kind of problems.

[mikkonie]

Error:

Post-processing 'vendor/select2/docs/plugins/highlight/css/brown-paper.css' failed!

Traceback (most recent call last):
  File "manage.py", line 28, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 413, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 354, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 398, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python3.8/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 187, in handle
    collected = self.collect()
  File "/usr/local/lib/python3.8/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 134, in collect
    raise processed
whitenoise.storage.MissingFileError: The file 'vendor/select2/docs/plugins/highlight/css/brown-papersq.png' could not be found with <whitenoise.storage.CompressedManifestStaticFilesStorage object at 0x7ff0f836cfa0>.

The CSS file 'vendor/select2/docs/plugins/highlight/css/brown-paper.css' references a file which could not be found:
  vendor/select2/docs/plugins/highlight/css/brown-papersq.png

Please check the URL references in this CSS file, particularly any
relative paths which might be pointing to the wrong location.

[mikkonie]

Fixed for now by pinning django-autocomplete-light==3.9.4. For future updates, see follow-up in the SODAR Core issue.