GitHub user dosubot[bot] added a comment to the discussion: Attribute not found error in superset_config.py
<!-- Answer --> This error happens because Superset 5 no longer supports customizing the main IndexView using FAB_INDEX_VIEW in superset_config.py—this setting is now ignored, which leads to the AttributeError you’re seeing, even if your class is defined correctly. The supported way to customize the IndexView in Superset 5 is to use FLASK_APP_MUTATOR instead of FAB_INDEX_VIEW [details](https://github.com/apache/superset/issues/34441). Here’s how you can migrate your customization: ```python from flask_appbuilder import expose, IndexView from superset.typing import FlaskResponse class SupersetDashboardIndexView(IndexView): @expose('/') def index(self) -> FlaskResponse: # your custom logic here pass def mutate_app(app): from superset.extensions import appbuilder appbuilder.indexview = SupersetDashboardIndexView # register other views/links as needed FLASK_APP_MUTATOR = mutate_app ``` Remove any FAB_INDEX_VIEW configuration from your config file. Make sure your FLASK_APP_MUTATOR function sets appbuilder.indexview to your custom class before any views are registered [reference](https://github.com/apache/superset/issues/34441). If you’re running Superset in Docker Compose, place your config at `/app/docker/pythonpath_dev/superset_config_docker.py` (not just anywhere in the container), and restart your containers so the config is picked up [reference](https://github.com/apache/superset/discussions/25487). If you still see errors, check your logs for import or syntax errors in your config file—any such error will prevent your class from being available [reference](https://github.com/apache/superset/issues/34441). <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/783c0ca1-7c6e-40f8-a2d2-93300e66cc1b?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=github)& nbsp;[](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/discussions/34530) GitHub link: https://github.com/apache/superset/discussions/34530#discussioncomment-13987212 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
