Trouble with JAWS Quick Start Deploy, AccessDeniedException during endpoint deploy

issue.md

Following the Quick Start in the Readme, an AccessDeniedException error is reported during the endpoint deployment.

$ jaws dash

JAWS: Dashboard for project "jaws-test2"
 -------------------------------------------
 Project Summary
 -------------------------------------------
    Stages: 
       dev us-east-1 
    Lambdas: 1
    Endpoints: 1
 -------------------------------------------
 Select Resources To Deploy
 -------------------------------------------  
    greetings/hello
      L) lGreetingsHello
      E) /greetings/hello - GET
    - - - - -
  >   Deploy Selected -->
JAWS: -------------------------------------------  
JAWS:  Dashboard:  Deploying Lambdas...  
JAWS: -------------------------------------------  
JAWS: Lambda Deployer:  Packaging "lGreetingsHello"...  
JAWS: Lambda Deployer:  Saving in dist dir /var/folders/z0/9b57q8t94nvgp81p9fjc_kbc0000gn/T/lGreetingsHello@1444358363281  
JAWS: Getting ENV file from S3 bucket: jaws.dev.useast1.myapp-vj8qwgee.com in us-east-1  
JAWS: Lambda Deployer:  Bundled file written to /var/folders/z0/9b57q8t94nvgp81p9fjc_kbc0000gn/T/lGreetingsHello@1444358363281/bundled.js  
JAWS: Lambda Deployer:  Minified file written to /var/folders/z0/9b57q8t94nvgp81p9fjc_kbc0000gn/T/lGreetingsHello@1444358363281/minified.js  
JAWS: Lambda Deployer:  Compressed lambda written to /var/folders/z0/9b57q8t94nvgp81p9fjc_kbc0000gn/T/lGreetingsHello@1444358363281/package.zip  
JAWS: Lambda Deployer:  Uploading lGreetingsHello to jaws.dev.useast1.myapp-vj8qwgee.com  
JAWS: Running CloudFormation lambda deploy...  
JAWS: Lambda Deployer:  Done deploying lambdas in us-east-1  
JAWS: Lambda Deployer:  Successfully deployed lambdas to the requested regions!  
JAWS: -------------------------------------------  
JAWS:  Dashboard:  Deploying Endpoints...  
JAWS: -------------------------------------------  
JAWS: Endpoint Deployer:  Deploying endpoint(s) to region "us-east-1"...  
JAWS: Endpoint Deployer:  "dev - us-east-1": found 1 endpoints to deploy  
JAWS: Endpoint Deployer:  "dev - us-east-1": created a new REST API on AWS API Gateway with ID: e10lxidklg  
JAWS: Endpoint Deployer:  "dev - us-east-1": found 1 existing resources on API Gateway  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created resource: greetings  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created resource: hello  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created method: GET  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created integration with the type: AWS  
{ [AccessDeniedException: Unable to determine service/operation name to be authorized]
  message: 'Unable to determine service/operation name to be authorized',
  code: 'AccessDeniedException',
  time: Thu Oct 08 2015 20:39:46 GMT-0600 (MDT),
  statusCode: 403,
  retryable: false,
  retryDelay: 30 }
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created method response  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created method response  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created method integration response  
JAWS: Endpoint Deployer:  "dev - us-east-1 - greetings/hello": created method integration response  
JAWS: Endpoint Deployer:  Endpoints for stage "dev" successfully deployed to API Gateway in the region "us-east-1". Access them @ https://e10lxidklg.execute-api.us-east-1.amazonaws.com/dev/  
JAWS: -------------------------------------------  
JAWS:  Dashboard:  Deployments Completed  
JAWS: -------------------------------------------  

Further, visiting https://e10lxidklg.execute-api.us-east-1.amazonaws.com/dev/greetings/hello returns {"message": "Internal server error"}

My IAM user has the managed AdministratorAccess policy attached:

Any help is appreciated.