message: fix(server): fix NPE in create server setup
  Fixes
diff: @@ -324,7 +324,7 @@ export class Server extends events.EventEmitter {
  config.agentOptions.agent = false;
  }
  - http(config, (err, res) => (!err && res.statusCode === 200) ? deferred.resolve() : deferred.reject(`HTTP Error: '${err.message}'`));
  + http(config, (err, res) => (!err && res.statusCode === 200) ? deferred.resolve() : deferred.reject(`HTTP Error: '${err ? err.message : ""}'`));
  return deferred.promise;
  }
  