cutePuppyPics doesn't work white screen

I followed the instructions at
Ionic serve doesn’t work and I get only a white screen.

0     076138   log      Angular 2 is running in the development mode. Call enableProdMode() to enable the production mode.
1     076142   warn     Native: tried calling undefined.styleDefault, but Cordova is not available. Make sure to include cordova.js or run in a device/simulator
serve  /build/pages/page1/page1.html
2     079940   group    EXCEPTION: Error: Uncaught (in promise): SyntaxError
3     079942   error    EXCEPTION: Error: Uncaught (in promise): SyntaxError
4     079945   error    STACKTRACE:
5     079947   error    Error: Uncaught (in promise): SyntaxError
   at resolvePromise (http://localhost:8100/build/js/zone.js:538:26)
   at Anonymous function (http://localhost:8100/build/js/zone.js:574:18)
   at ZoneDelegate.prototype.invokeTask (http://localhost:8100/build/js/zone.js:354:18)
   at onInvokeTask (http://localhost:8100/build/js/app.bundle.js:30531:25)
   at ZoneDelegate.prototype.invokeTask (http://localhost:8100/build/js/zone.js:354:18)
   at Zone.prototype.runTask (http://localhost:8100/build/js/zone.js:256:22)
   at drainMicroTaskQueue (http://localhost:8100/build/js/zone.js:474:26)
   at invoke (http://localhost:8100/build/js/zone.js:426:22)
6     079949   groupEnd
7     079953   error    Unhandled Promise rejection:, [object Object], ; Zone:, angular, ; Task:, Promise.then, ; Value:, [object Object]
serve  /build/fonts/ionicons.woff?v=3.0.0-alpha.3

ionic info:
Your system information:

Cordova CLI: 6.1.1
Gulp version: CLI version 3.9.1
Gulp local: Local version 3.9.1
Ionic Framework Version: 2.0.0-beta.7
Ionic CLI Version: 2.0.0-beta.25
Ionic App Lib Version: 2.0.0-beta.15
OS: Windows 7 SP1
Node Version: v5.11.0

Any idea what is wrong?

the second tutorial doesn’t work too… :’(

SOLVED!! I dont know why but I changed the browser ionic serve -f chrome and works fine… before used explorer