Ionic serve not working with ionic2

Question

I have started a clean project with ionic2 based on tabs template, by following the next steps:

$ ionic start <myapp> --v2
$ cd <myapp>
$ ionic serve

Then the output from ionic serve is just:

> ionic-hello-world@ ionic:serve /home/luan/<myapp>
> ionic-app-scripts serve "--v2" "--address" "0.0.0.0" "--port" "8100" "--livereload-port" "35729"

If I try to open localhost:8100 there's no response.

The files and code of the project are just the same as one using tabs template, but it's just don't wonking. Could someone help?

UPDATE: My ionic info

My system information:
Cordova CLI: 6.5.0
Ionic Framework Version: 2.3.0
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.2.2
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Linux 4.4
Node Version: v6.10.0
Xcode version: Not installed

Answer 1

Have you tried using

npm run ionic:serve

Answer 2

I have found the answer. It turns out, the 1.2.2 version of Ionic App Scripts (app-scripts) version was the problem. Just downgraded to 1.1.4 and works fine. The actual workaround:

in package.json, change

"@ionic/app-scripts": "1.2.2" 

to

"@ionic/app-scripts": "1.1.4"

then run npm install again. It should show something like this:

[...]
- [email protected] node_modules/sentence-case
- [email protected] node_modules/change-case
ionic-hello-world@ /home/luan/Projetos/prestacontas
└── @ionic/[email protected] ## The problem was here

Make shure that @ionic/app-scripts is now 1.1.4, and not 1.2.2.

And that's it.