hasura/graphql-engine · error · DataConnectorScalarTypesError::GraphqlConfigError

{0}

Error message

{0}

What it means

Transparent wrapper in the data-connector-scalar-types stage for GraphqlConfigError. It surfaces GraphQL configuration problems (e.g. duplicate names, invalid field names) encountered while deriving connector scalar types.

Source

Thrown at v3/crates/metadata-resolve/src/stages/data_connector_scalar_types/error.rs:30

        None
    }
}

#[derive(Debug, thiserror::Error)]
pub enum DataConnectorScalarTypesError {
    #[error(
        "multiple type representations defined for scalar {scalar_type:} from data connector {data_connector:}"
    )]
    DuplicateDataConnectorScalarRepresentation {
        data_connector: Qualified<DataConnectorName>,
        scalar_type: DataConnectorScalarType,
    },
    #[error("unknown type represented for scalar type {scalar_type:}: {type_name:}")]
    ScalarTypeUnknownRepresentation {
        scalar_type: DataConnectorScalarType,
        type_name: Qualified<CustomTypeName>,
    },
    #[error("{0}")]
    GraphqlConfigError(#[from] graphql_config::GraphqlConfigError),
    #[error("{0}")]
    ScalarBooleanExpressionTypeError(
        #[from] scalar_boolean_expressions::ScalarBooleanExpressionTypeError,
    ),
}

View on GitHub (pinned to 724551b9ae)

Solutions

1. Read the inner GraphqlConfigError message
2. Fix the graphql configuration for the affected type
3. Rebuild metadata

Catch and delegate to the inner GraphqlConfigError's handling.

When it happens

Trigger: Resolving connector scalar types when the metadata's graphql configuration for a type is invalid.

Common situations: Bad graphql config block on a scalar/type definition in metadata.

Related errors

• setting up codegen-assets repo failed (this is required for
• {0}
• {0}
• multiple type representations defined for scalar {scalar_typ
• unknown type represented for scalar type {scalar_type:}: {ty

AI-assisted analysis of hasura/graphql-engine@724551b9ae (2026-08-28). Data as JSON: /api/errors/9139365aa6b01b72. Report an issue: GitHub.