So i signed my apk (default cordova app-just to ckeck if i can sign apk) using instructions on this page http://ionicframework.com/docs/guide/publishing.html
I followed it srep by step (only thing i didnt to is set android.debuggable to false in androidmanifest.xml because that doesn exist in my file) and my cordova project doesn’t have any error. So when i sign apk and install it on android device, the app would not even start and i get this message alert “Unfortunalty, app_name has stopped”.
Well this is unfortunate. Without this i can’t publish app on playstore.