gistfile1.txt

$ apib2swagger -i my_api.apib  --yaml -o my_api.yaml
TypeError: Cannot read property 'length' of undefined
    at jsonSchemaFromMSON (/usr/local/lib/node_modules/apib2swagger/index.js:266:38)
    at /usr/local/lib/node_modules/apib2swagger/index.js:39:67
    at Array.forEach (<anonymous>)
    at /usr/local/lib/node_modules/apib2swagger/index.js:32:26
    at Array.forEach (<anonymous>)
    at module.exports.convertParsed (/usr/local/lib/node_modules/apib2swagger/index.js:29:8)
    at Object.exports.convert (/usr/local/lib/node_modules/apib2swagger/index.js:402:23)
    at processBlueprint (/usr/local/lib/node_modules/apib2swagger/bin/apib2swagger.js:87:18)
    at ReadStream.__dirname.on.on (/usr/local/lib/node_modules/apib2swagger/bin/apib2swagger.js:67:5)
    at ReadStream.emit (events.js:165:20)

$ api-spec-converter --from api_blueprint --to openapi_3 my_api.apib >my_api.yaml
Fatal TypeError: Cannot read property 'length' of undefined
    at jsonSchemaFromMSON (/usr/local/lib/node_modules/api-spec-converter/node_modules/apib2swagger/index.js:266:38)
    at /usr/local/lib/node_modules/api-spec-converter/node_modules/apib2swagger/index.js:39:67
    at Array.forEach (<anonymous>)
    at /usr/local/lib/node_modules/api-spec-converter/node_modules/apib2swagger/index.js:32:26
    at Array.forEach (<anonymous>)
    at Object.module.exports.convertParsed (/usr/local/lib/node_modules/api-spec-converter/node_modules/apib2swagger/index.js:29:8)
    at converters.swagger_2.Promise.method.apibp (/usr/local/lib/node_modules/api-spec-converter/lib/formats/api_blueprint.js:16:24)
    at tryCatcher (/usr/local/lib/node_modules/api-spec-converter/node_modules/bluebird/js/release/util.js:16:23)
    at /usr/local/lib/node_modules/api-spec-converter/node_modules/bluebird/js/release/method.js:15:34
    at Promise.try (/usr/local/lib/node_modules/api-spec-converter/lib/base_format.js:162:12)
    at tryCatcher (/usr/local/lib/node_modules/api-spec-converter/node_modules/bluebird/js/release/util.js:16:23)
    at Function.Promise.attempt.Promise.try (/usr/local/lib/node_modules/api-spec-converter/node_modules/bluebird/js/release/method.js:39:29)
    at module.exports.BaseFormat.convertTo (/usr/local/lib/node_modules/api-spec-converter/lib/base_format.js:154:21)
    at prom.then.spec (/usr/local/lib/node_modules/api-spec-converter/lib/base_format.js:178:19)
    at tryCatcher (/usr/local/lib/node_modules/api-spec-converter/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/usr/local/lib/node_modules/api-spec-converter/node_modules/bluebird/js/release/promise.js:512:31)