How to make an ionic app run in smart TV(Android TV)?I have got no idea about it...guys plzz help me out

Exactly the same as any other Android device.

But your Android TV seems to be Android 4.x:
Your problem is caused by the cordova-plugin-ionic-webview plugin that is part of every new or updated Ionic app. The current version 2.x doesn’t support Android 4.x any more.

Read here for more background and possible solutions:

still not working mate rather now it shows the app cant be installed.