Error parsing ASN.1 specification document

[GinesGarcia]

Hi, I'm getting some errors while tryting to parse a specification document. It seems that some of the keywords used for the specification are not supported but I'm not sure. Error:

FATAL: Terminal type for reject at line 313 not found in spec.asn1
FATAL: Cannot find reject referenced by RICsubscriptionRequest-IEs at line 313 in spec.asn1
FATAL: Cannot parse RICsubscriptionRequest-IEs of CLASS E2AP-PROTOCOL-IES found at line 313 in spec.asn1
FATAL: Parsing ObjectSet RICsubscriptionRequest-IEs failed at 313 in spec.asn1
FATAL: Terminal type for reject at line 313 not found in spec.asn1

Source:

  # Line 313
  RICsubscriptionRequest-IEs E2AP-PROTOCOL-IES ::= {
      { ID id-RICrequestID                CRITICALITY reject                      TYPE RICrequestID
      PRESENCE mandatory}|
      { ID id-RANfunctionID               CRITICALITY reject                      TYPE RANfunctionID
      PRESENCE mandatory}|
      { ID id-RICsubscriptionDetails      CRITICALITY reject                      TYPE RICsubscriptionDetails
      PRESENCE mandatory},
      ...
  }

Criticality          ::= ENUMERATED { reject, ignore, notify }

  E2AP-PROTOCOL-IES ::= CLASS {
      &id             ProtocolIE-ID                                     UNIQUE,
      &criticality    Criticality,
      &Value,
      &presence       Presence
  }
  WITH SYNTAX {
      ID              &id
      CRITICALITY     &criticality
      TYPE            &Value
      PRESENCE        &presence
  }

Any ideas about where the issue could be?

Regards, Ginés.