cube-js/cube · error

The schema file for "${cubeName}" cube was not found or coul

Error message

The schema file for "${cubeName}" cube was not found or could not be updated. Only JS and non-templated YAML files are supported.

What it means

Not a thrown error: in the DevServer pre-aggregation conversion endpoint, after a successful schema conversion this 400 JSON response is returned when no generated source file matches the requested cubeName — the converter could not produce/update a schema file for that cube, typically because the source is a templated YAML or otherwise unsupported format.

Source

Thrown at packages/cubejs-server-core/src/core/DevServer.ts:644

        new CubePreAggregationConverter({
          cubeName,
          preAggregationName,
          code
        })
      ]);

      try {
        await schemaConverter.generate(cubeName);
      } catch (error) {
        return res.status(400).json({ error: (error as Error).message || error });
      }

      const file = schemaConverter.getSourceFiles().find(
        ({ cubeName: currentCubeName }) => currentCubeName === cubeName
      );

      if (!file) {
        return res.status(400).json({ error: `The schema file for "${cubeName}" cube was not found or could not be updated. Only JS and non-templated YAML files are supported.` });
      }

      this.cubejsServer.repository.writeDataSchemaFile(file.fileName, file.source);
      return res.json('ok');
    }));
  }

  protected getIdentifier(apiSecret: string): string {
    return crypto.createHash('md5')
      .update(apiSecret)
      .digest('hex')
      .replace(/[^\d]/g, '')
      .slice(0, 10);
  }
}

View on GitHub (pinned to 7d981676b3)

Solutions

1. Convert the cube's schema to plain (non-templated) YAML or JavaScript before attempting pre-aggregation conversion.
2. Verify the cubeName matches the cube defined in the repository files.
3. Check repository data sources are configured so the converter can locate the schema file.

When it happens

Trigger: Thrown at packages/cubejs-server-core/src/core/DevServer.ts:644 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of cube-js/cube@7d981676b3 (2026-09-02). Data as JSON: /api/errors/0f8cb1da77269eab. Report an issue: GitHub.