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Command /home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/bin/python -m sphinx -T -E -b html -d _build/doctrees -D language=en . _build/html failed: Running Sphinx v4.4.0 Traceback (most recent call last): File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/config.py", line 340, in eval_config_file exec(code, namespace) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/checkouts/stable/docs/conf.py", line 14, in <module> django.setup() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/apps/registry.py", line 122, in populate app_config.ready() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/contrib/admin/apps.py", line 27, in ready self.module.autodiscover() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/contrib/admin/__init__.py", line 24, in autodiscover autodiscover_modules('admin', register_to=site) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/utils/module_loading.py", line 57, in autodiscover_modules import_module('%s.%s' % (app_config.name, module_to_search)) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1014, in _gcd_import File "<frozen importlib._bootstrap>", line 991, in _find_and_load File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 671, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 783, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/checkouts/stable/django_dataexporter/admin.py", line 1, in <module> from django.utils.translation import ugettext_lazy as _ ImportError: cannot import name 'ugettext_lazy' from 'django.utils.translation' (/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/utils/translation/__init__.py) The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/cmd/build.py", line 280, in build_main app = Sphinx(args.sourcedir, args.confdir, args.outputdir, File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/application.py", line 209, in __init__ self.config = Config.read(self.confdir, confoverrides or {}, self.tags) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/config.py", line 173, in read namespace = eval_config_file(filename, tags) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/config.py", line 353, in eval_config_file raise ConfigError(msg % traceback.format_exc()) from exc sphinx.errors.ConfigError: There is a programmable error in your configuration file: Traceback (most recent call last): File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/config.py", line 340, in eval_config_file exec(code, namespace) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/checkouts/stable/docs/conf.py", line 14, in <module> django.setup() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/apps/registry.py", line 122, in populate app_config.ready() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/contrib/admin/apps.py", line 27, in ready self.module.autodiscover() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/contrib/admin/__init__.py", line 24, in autodiscover autodiscover_modules('admin', register_to=site) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/utils/module_loading.py", line 57, in autodiscover_modules import_module('%s.%s' % (app_config.name, module_to_search)) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1014, in _gcd_import File "<frozen importlib._bootstrap>", line 991, in _find_and_load File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 671, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 783, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/checkouts/stable/django_dataexporter/admin.py", line 1, in <module> from django.utils.translation import ugettext_lazy as _ ImportError: cannot import name 'ugettext_lazy' from 'django.utils.translation' (/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/utils/translation/__init__.py) Configuration error: There is a programmable error in your configuration file: Traceback (most recent call last): File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/sphinx/config.py", line 340, in eval_config_file exec(code, namespace) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/checkouts/stable/docs/conf.py", line 14, in <module> django.setup() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/apps/registry.py", line 122, in populate app_config.ready() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/contrib/admin/apps.py", line 27, in ready self.module.autodiscover() File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/contrib/admin/__init__.py", line 24, in autodiscover autodiscover_modules('admin', register_to=site) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/utils/module_loading.py", line 57, in autodiscover_modules import_module('%s.%s' % (app_config.name, module_to_search)) File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1014, in _gcd_import File "<frozen importlib._bootstrap>", line 991, in _find_and_load File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 671, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 783, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/checkouts/stable/django_dataexporter/admin.py", line 1, in <module> from django.utils.translation import ugettext_lazy as _ ImportError: cannot import name 'ugettext_lazy' from 'django.utils.translation' (/home/docs/checkouts/readthedocs.org/user_builds/django-dataexporter/envs/stable/lib/python3.8/site-packages/django/utils/translation/__init__.py)