TypeError: Cannot read property 'length' of undefined
at /Users/am/Dev/github/yhsd-api-node/lib/Auth.js:115:23
at tryCatcher (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/util.js:16:23)
at Promise._settlePromiseFromHandler (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/promise.js:547:31)
at Promise._settlePromise (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/promise.js:604:18)
at Promise._settlePromise0 (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/promise.js:649:10)
at Promise._settlePromises (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/promise.js:729:18)
at _drainQueueStep (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/async.js:93:12)
at _drainQueue (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/async.js:86:9)
at Async._drainQueues (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/async.js:102:5)
at Immediate.Async.drainQueues (/Users/am/Dev/github/yhsd-api-node/node_modules/bluebird/js/release/async.js:15:14)
at runCallback (timers.js:810:20)
at tryOnImmediate (timers.js:768:5)
at processImmediate [as _immediateCallback] (timers.js:745:5)
