The human-readable error message
The field path where the error occurred (dot notation)
The name of the validation rule that failed
OptionalindexThe array index if this error is for an array element
OptionalmetaAdditional metadata about the error (e.g., attempted value, rule options)
Structure of validation errors as collected by the SimpleErrorReporter. Each error provides comprehensive information about validation failures including the error message, field location, and additional context.
Example