Django crashes due to ManifestStaticFilesStorage plugin in 4.2

[Thijs Suijten]

I have a pretty standard Django setup, I upgraded to 4.2 and deployed my application only to find a 500 error on the login page with the below exception.

My suspicion is that this is caused because of: "4.2: Experimental optional support for finding paths to JavaScript modules in import and export statements was added."

This is my stack trace (from Google AppEngine)

Internal Server Error: /admin/login/
Traceback (most recent call last):
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/core/handlers/base.py", line 220, in _get_response
    response = response.render()
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/response.py", line 111, in render
    self.content = self.rendered_content
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/response.py", line 89, in rendered_content
    return template.render(context, self._request)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/backends/django.py", line 61, in render
    return self.template.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 175, in render
    return self._render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/test/utils.py", line 112, in instrumented_test_render
    return self.nodelist.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/loader_tags.py", line 157, in render
    return compiled_parent._render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/test/utils.py", line 112, in instrumented_test_render
    return self.nodelist.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/loader_tags.py", line 157, in render
    return compiled_parent._render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/test/utils.py", line 112, in instrumented_test_render
    return self.nodelist.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/loader_tags.py", line 157, in render
    return compiled_parent._render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/test/utils.py", line 112, in instrumented_test_render
    return self.nodelist.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/loader_tags.py", line 63, in render
    result = block.nodelist.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/templatetags/static.py", line 116, in render
    url = self.url(context)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/templatetags/static.py", line 113, in url
    return self.handle_simple(path)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/templatetags/static.py", line 129, in handle_simple
    return staticfiles_storage.url(path)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/contrib/staticfiles/storage.py", line 203, in url
    return self._url(self.stored_name, name, force)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/contrib/staticfiles/storage.py", line 182, in _url
    hashed_name = hashed_name_func(*args)
  File "/layers/google.python.pip/pip/lib/python3.10/site-packages/django/contrib/staticfiles/storage.py", line 513, in stored_name
    raise ValueError(
ValueError: Missing staticfiles manifest entry for 'admin/js/theme.js'

[Mariusz Felisiak]

Replying to tsuijten:

My suspicion is that this is caused because of: "4.2: Experimental optional support for finding paths to JavaScript modules in import and export statements was added."

This is disabled by default, so cannot cause any issues.

I don't think you've explained the issue in enough detail to confirm a bug in Django. Please reopen the ticket if you can debug your issue and provide details about why and where Django is at fault or a sample project that reproduces your issue.