Unhandled rejection ReferenceError

I have installed Meteor app from official tutorial and it works fine.

But get error when I try to run acceptance test. I run meteor npm run chimp-watch.

1. At the beginning Chrome browser is opened with "data," url in address bar .
2. And there is error in terminal: "Unhandled rejection ReferenceError: Symbol is not defined".

I use Ubuntu and Node.js 6.1

chimp watch is chimp --ddp=http://localhost:3000 --watch --mocha --path=tests