readEvidenceDetails.dtls cannot be resolved or is not a field

Symptom:
Compilation error in generated code: readEvidenceDetails.dtls cannot be resolved or is not a field
Cause:
The "dtls" association between the Read<EvidenceEntity>Details struct and the <EvidenceEntity> entity is missing. This association is mandatory for all evidence entities.
Solution:
Create an association as described between the two structs. See Asset Entity and Aggregations for more details.