sdl_error

# UndefinedFunctionError at POST /api/graphql

Exception:

    ** (UndefinedFunctionError) function Absinthe.Blueprint.TypeReference.Name.kind/0 is undefined or private
        (absinthe) Absinthe.Blueprint.TypeReference.Name.kind()
        (absinthe) lib/absinthe/type/built_ins/introspection.ex:106: anonymous fn/2 in Absinthe.Type.BuiltIns.Introspection.__absinthe_function__/2
        (absinthe) lib/absinthe/resolution.ex:206: Absinthe.Resolution.call/2
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:230: Absinthe.Phase.Document.Execution.Resolution.reduce_resolution/1
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:185: Absinthe.Phase.Document.Execution.Resolution.do_resolve_field/3
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:170: Absinthe.Phase.Document.Execution.Resolution.do_resolve_fields/6
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:88: Absinthe.Phase.Document.Execution.Resolution.walk_result/5
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:114: Absinthe.Phase.Document.Execution.Resolution.walk_results/6
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:103: Absinthe.Phase.Document.Execution.Resolution.walk_result/5
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:280: Absinthe.Phase.Document.Execution.Resolution.build_result/3
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:170: Absinthe.Phase.Document.Execution.Resolution.do_resolve_fields/6
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:88: Absinthe.Phase.Document.Execution.Resolution.walk_result/5
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:114: Absinthe.Phase.Document.Execution.Resolution.walk_results/6
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:103: Absinthe.Phase.Document.Execution.Resolution.walk_result/5
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:280: Absinthe.Phase.Document.Execution.Resolution.build_result/3
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:170: Absinthe.Phase.Document.Execution.Resolution.do_resolve_fields/6
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:88: Absinthe.Phase.Document.Execution.Resolution.walk_result/5
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:280: Absinthe.Phase.Document.Execution.Resolution.build_result/3
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:170: Absinthe.Phase.Document.Execution.Resolution.do_resolve_fields/6
        (absinthe) lib/absinthe/phase/document/execution/resolution.ex:88: Absinthe.Phase.Document.Execution.Resolution.walk_result/5
    

## Connection details

### Params

    %{"query" => "\n  query IntrospectionQuery {\n    __schema {\n      queryType { name }\n      mutationType { name }\n      types {\n        ...FullType\n      }\n      directives {\n        name\n        description\n        locations\n        args {\n          ...InputValue\n        }\n      }\n    }\n  }\n\n  fragment FullType on __Type {\n    kind\n    name\n    description\n    fields(includeDeprecated: true) {\n      name\n      description\n      args {\n        ...InputValue\n      }\n      type {\n        ...TypeRef\n      }\n      isDeprecated\n      deprecationReason\n    }\n    inputFields {\n      ...InputValue\n    }\n    interfaces {\n      ...TypeRef\n    }\n    enumValues(includeDeprecated: true) {\n      name\n      description\n      isDeprecated\n      deprecationReason\n    }\n    possibleTypes {\n      ...TypeRef\n    }\n  }\n\n  fragment InputValue on __InputValue {\n    name\n    description\n    type { ...TypeRef }\n    defaultValue\n  }\n\n  fragment TypeRef on __Type {\n    kind\n    name\n    ofType {\n      kind\n      name\n      ofType {\n        kind\n        name\n        ofType {\n          kind\n          name\n          ofType {\n            kind\n            name\n            ofType {\n              kind\n              name\n              ofType {\n                kind\n                name\n                ofType {\n                  kind\n                  name\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n"}