Missing "description" in subschema raises "No subschema in "anyOf" matched."

[ryanbrainard]

I had a property that looked like this:

  channel:
    type:
    - object
    properties:
      id:
        "$ref": "/schemata/channel#/definitions/id"
      name:
        "$ref": "/schemata/channel#/definitions/name"

which was raising the error:

schema/schema.json: #/definitions/approval/properties/channel: failed schema #/definitions/resource/properties/properties/patternProperties/^[a-z0-9][a-zA-Z0-9_]*[a-zA-Z0-9]$: No subschema in "anyOf" matched.

This error was not very helpful at explaining what the problem actually was. After much trial and error, it was the fact that the description was missing. i.e. this fixed it:

  channel:
    description: THIS IS THE FIX
    type:
    - object
    properties:
      id:
        "$ref": "/schemata/channel#/definitions/id"
      name:
        "$ref": "/schemata/channel#/definitions/name"

Can we please have a better error message for this?

prmd 0.13.0

[ryanbrainard]

I should also note that this was a breaking change. I upgrade from prmd 0.7.0 to 0.13.0 and the same schema no longer validated.