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# Elenco delle eccezioni per le query di inferenza SPARQL in Neptune ML
<a name="machine-learning-sparql-exceptions"></a>

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+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference expects at least 1 value for the parameter (parameter name), found zero.`
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference expects at most 1 value for the parameter (parameter name), found (a number) values.`
+ **`BadRequestException`**   –   *Messaggio*: `Invalid predicate (predicate name) provided for external service http://aws.amazon.com/neptune/vocab/v01/services/ml#inference query.`
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference expects the predicate (predicate name) to be defined`.
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference expects the value of (parameter) (parameter name) to be a variable, found: (type)"`
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference expects the input (parameter name) to be a constant, found: (type)`.
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference is expected to return only 1 value`.
+ **`BadRequestException`**   –   *Messaggio*: `"The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference only allows StatementPatternNodes`.
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference does not allow the predicate (predicate name)`.
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference predicates cannot be variables, found: (type)`.
+ **`BadRequestException`**   –   *Messaggio*: `The SERVICE http://aws.amazon.com/neptune/vocab/v01/services/ml#inference predicates are expected to be part of the namespace (namespace name), found: (namespace name)`.