# Unknown column error

**URL:** <https://discuss.openedx.org/t/unknown-column-error/4887>\
**Category:** Development\
**Tags:** devstack\
**Created:** [May 4, 2021, 4:28am UTC](https://discuss.openedx.org/t/unknown-column-error/4887 "2021-05-04T04:28:00Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Richa\_Tiwari](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.openedx.org/richa_tiwari/32/2450_2.png) [@Richa\_Tiwari](https://discuss.openedx.org/u/Richa_Tiwari)\
**Post date:** [May 4, 2021, 4:28am UTC](https://discuss.openedx.org/t/unknown-column-error/4887/1 "2021-05-04T04:28:00Z")

</div>

# OperationalError at /

(1054, “Unknown column ‘course\_overviews\_courseoverview.banner\_image\_url’ in ‘field list’”)

| Request Method: | GET |
| --- | --- |
| Request URL: | [http://localhost:18000/](http://localhost:18000/) |
| Django Version: | 2.2.19 |
| Exception Type: | OperationalError |
| Exception Value: | (1054, “Unknown column ‘course\_overviews\_courseoverview.banner\_image\_url’ in ‘field list’”) |
| Exception Location: | /edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages/MySQLdb/connections.py in query, line 259 |
| Python Executable: | /edx/app/edxapp/venvs/edxapp/bin/python |
| Python Version: | 3.8.5 |
| Python Path: | [‘/edx/app/edx\_ansible/edx\_ansible/docker/plays’, ‘/edx/app/edxapp/edx-platform’, ‘/edx/app/edxapp/venvs/edxapp/lib/python38.zip’, ‘/edx/app/edxapp/venvs/edxapp/lib/python3.8’, ‘/edx/app/edxapp/venvs/edxapp/lib/python3.8/lib-dynload’, ‘/usr/lib/python3.8’, ‘/edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages’, ‘/edx/app/edxapp/venvs/edxapp/src/olxcleaner’, ‘/edx/app/edxapp/venvs/edxapp/src/py2neo’, ‘/edx/app/edxapp/venvs/edxapp/src/acid-xblock’, ‘/edx/app/edxapp/venvs/edxapp/src/codejail’, ‘/edx/app/edxapp/venvs/edxapp/src/django-wiki’, ‘/edx/app/edxapp/venvs/edxapp/src/done-xblock’, ‘/edx/app/edxapp/venvs/edxapp/src/edx-jsme’, ‘/edx/app/edxapp/venvs/edxapp/src/rate-xblock’, ‘/edx/app/edxapp/venvs/edxapp/src/xblock-google-drive’, ‘/edx/app/edxapp/edx-platform/common/lib/capa’, ‘/edx/app/edxapp/edx-platform’, ‘/edx/app/edxapp/edx-platform/common/lib/safe\_lxml’, ‘/edx/app/edxapp/edx-platform/common/lib/sandbox-packages’, ‘/edx/app/edxapp/edx-platform/common/lib/symmath’, ‘/edx/app/edxapp/edx-platform/openedx/core/lib/xblock\_builtin/xblock\_discussion’, ‘/edx/app/edxapp/edx-platform/common/lib/xmodule’, Path(‘/edx/app/edxapp/edx-platform/import\_shims/lms’)] |
| Server time: | Tue, 4 May 2021 04:04:37 +0000 |

---

<div class="post-metadata">

**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:** [May 4, 2021, 3:23pm UTC](https://discuss.openedx.org/t/unknown-column-error/4887/2 "2021-05-04T15:23:37Z")

</div>

That error usually indicates you need to run migrations (e.g. “make lms-update-db studio-update-db” if you’re on devstack).

In this case, you’re missing [this migration](https://github.com/edx/edx-platform/blob/master/openedx/core/djangoapps/content/course_overviews/migrations/0023_courseoverview_banner_image_url.py).