Just show Loading... and got the error "2016-01-28 13:52:51.997 Electron Helper[95534:12066995] Couldn't set selectedTextBackgroundColor from default ()"

As following the step [Create a Desktop Chat Application using the CEAN Stack and Electron](http://blog.couchbase.com/2016/january/create-a-desktop-chat-application-using-the-cean-stack-and-electron),
and add the step:

```
./node_modules/typescript/bin/tsc -p public -w
```

(or you will got 404 error after you access http://localhost:3000)
The brower can correct show the chat windows,and all works fine.
when I run

```
npm start
```

I can only see Loading... in the windows,and got the following error:

```
2016-01-28 13:52:51.997 Electron Helper[95534:12066995] Couldn't set selectedTextBackgroundColor from default ()
```