# ERR\_RECIPE\_CANNOT\_CHECK\_SCHEMA\_CONSISTENCY\_EXPENSIVE: Cannot check schema consistency: expensive checks disabled[¶](https://doc.dataiku.com/dss/latest/troubleshooting/errors/ERR_RECIPE_CANNOT_CHECK_SCHEMA_CONSISTENCY_EXPENSIVE.html#err-recipe-cannot-check-schema-consistency-expensive-cannot-check-schema-consistency-expensive-checks-disabled "Permalink to this headline")

DSS has detected that the schema is expensive to compute for the specified dataset(s).

This error can happen when trying to run a schema check or propagate schema changes from a dataset.

## Remediation[¶](https://doc.dataiku.com/dss/latest/troubleshooting/errors/ERR_RECIPE_CANNOT_CHECK_SCHEMA_CONSISTENCY_EXPENSIVE.html#remediation "Permalink to this headline")

The “Check consistency” and “Propagate schema” tools in the flow have a “Perform potentially slow checks” option. Make sure this option is enabled.
