Swagger Editor shows the "Schema error: should NOT have additional properties" error for a path parameter
The error message is misleading. The actual error is that your path parameter is missing required: true
. Path parameters are always required, so remember to add required: true
to them.
Had the same problem. I accidentally mixed up the syntax from Swagger 2.0
with Openapi 3.0.x
. In Openapi 3.0.x
, definitions are redefined as components. In the online editor you can click on the button Edit > Convert to OpenAPI 3 to use Openapi 3.0.x
.
Read more about components here.
Remark:
OAS 3 is the latest version of the OpenAPI Specification.