dosubot[bot] commented on issue #36381: URL: https://github.com/apache/superset/issues/36381#issuecomment-3602534798
<!-- Greeting --> Hi @NarendraKotapati! I'm [Dosu](https://go.dosu.dev/dosubot) and Iām helping the superset team. <!-- Answer --> Dashboard import failures between Superset 3.1.1 and 4.1.4 are usually caused by changes in the import/export format and stricter schema validation in newer versions. Superset 4.x expects dashboard exports to include a metadata.yaml file with version: 1.0.0 and type: Dashboard, and all YAML/JSON files must match the new schema. If your export is missing metadata.yaml, has an incorrect version/type, or contains files that don't match the schema, the import will fail with a validation error or CommandException. Recent updates also require dashboards referencing themes to bundle those themes in the export; otherwise, imports may fail or dashboards may lose their theme settings. This was improved in a recent PR so that missing themes now fall back gracefully, but you need to be on the latest 4.1.4/master build to benefit from this fix and improved error reporting ([details](https://github.com/apache/superset/pull/34850)). To resolve this, check that your export bundle from 3.1.1 includes metadata.yaml with the correct fields, and that all referenced datasets, charts, and themes are present and valid. If you see validation errors in the logs, they should now indicate which file and field failed. If your export is in the old format, you may need to re-export from a newer Superset version or manually adapt the files to the new schema. If you have dashboards with cross-filter scoping or custom themes, make sure those features are correctly represented in the export, as schema changes in these areas can also cause import failures ([example](https://github.com/apache/superset/pull/34418)). If you need more details, extracting the full error message from the logs (not just the stack trace) will help pinpoint the exact validation issue. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? 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