# RuntimeError: Model class openedx.core.djangoapps.content\_staging.models.StagedContent doesn't declare an explicit app\_label and isn't in an application in INSTALLED\_APPS

**URL:** <https://discuss.openedx.org/t/runtimeerror-model-class-openedx-core-djangoapps-content-staging-models-stagedcontent-doesnt-declare-an-explicit-app-label-and-isnt-in-an-application-in-installed-apps/14639>\
**Category:** Tutor Help\
**Tags:** tutor\
**Created:** [December 23, 2024, 3:46pm UTC](https://discuss.openedx.org/t/runtimeerror-model-class-openedx-core-djangoapps-content-staging-models-stagedcontent-doesnt-declare-an-explicit-app-label-and-isnt-in-an-application-in-installed-apps/14639 "2024-12-23T15:46:35Z")\
**Posts on this page:** 1\
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**Author:** ![braden](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.openedx.org/braden/32/46_2.png) [@braden](https://discuss.openedx.org/u/braden)\
**Post date:** [January 7, 2025, 8:26pm UTC](https://discuss.openedx.org/t/runtimeerror-model-class-openedx-core-djangoapps-content-staging-models-stagedcontent-doesnt-declare-an-explicit-app-label-and-isnt-in-an-application-in-installed-apps/14639/2 "2025-01-07T20:26:23Z")

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This error is similar to the one discussed in [Django Installed Apps Error after Quickstart on M1](https://discuss.openedx.org/t/django-installed-apps-error-after-quickstart-on-m1/8486) - could you please review that thread and see if any of the issues there are what’s causing it for you?

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_[View the full topic](https://discuss.openedx.org/t/runtimeerror-model-class-openedx-core-djangoapps-content-staging-models-stagedcontent-doesnt-declare-an-explicit-app-label-and-isnt-in-an-application-in-installed-apps/14639)._