App developement issue

[nvlles]

Hello,
i'm new to the developement with android based phones. I've learned long time ago Java, so it's no problem for me to develope in java.

But, why my application is crashing after adding a tabbed layout with "tabs" at the top? There is only the tab control, nothing else, no functionallity!

I have the phone Sony Xperia E with Android 4.1 ISC.

 

[out of ideas]

check your logcat.