# NominalFailedPreconditionError

## exception nominal.exceptions.NominalFailedPreconditionError

Bases: [`NominalError`](https://dev.nominal.io/python/ref/generated/nominal.exceptions.NominalError.md#nominal.exceptions.NominalError "nominal.exceptions.NominalError")

The request was rejected because the system is not in the state it requires, e.g. a feature is not enabled.