add clear not error message (for swagger-api#1489)

shockey · shockey · commit 3e0462b60d81 · 2019-04-10T16:33:37.000-07:00
diff --git a/src/plugins/json-schema-validator/oas3-schema.yaml b/src/plugins/json-schema-validator/oas3-schema.yaml
@@ -607,6 +607,7 @@ definitions:
     additionalProperties: false
   ExampleXORExamples:
     description: Example and examples are mutually exclusive
+    errorMessage: "should not have both `example` and `examples`, as they are mutually exclusive"
     not:
       required:
       - example
