Force close on start with Admob on Android

unlying

I'm trying to add ads to my application using this instruction(http://appcodingeasy.com/Gideros-Mobile/Gideros-Implementing-AdMob-for-Android), but after building i have a force close after start. I have no errors on Eclipse, but app doesn't start. Without ads works fine.
Where should i try to find a problems or how to know reason about application closes?
Thanks.

ar2rsawseen

Hello,
have you tried launching example project available on the site?

unlying

Yes. Same problem. 2 different devices(arm7 and arm6). So if it works fine for everybody, than i have problems with eclipse, yes? But how can i find it if i have no errors?
Thanks.

ar2rsawseen

Does a log cat (DDMS button in upper right corner) show something?

unlying

ar2rsawseen, thanks! Problem appear because i don't use "order and export" for sdk. Google says that from 17 version sdk we should manually add sdk lib to libs folder or use order and export.
Problem solved, thanks!