I am unable to run the Fun Facts app

1) When you create an application you should put the API lower than the API used by android which is run in the emulator. In your case, your emulator is running android whose API is 10 but your application is built with the target to API 15. (if you did it go to 2 or 3)

2) Maybe Android Studio is automatically changing your app's API to the best/latest (API 23). Here you can change in the manifest.xml file (Go to android documentation: http://developer.android.com/guide/topics/manifest/uses-sdk-element.html ). I hope you will be able to figure it out how it works. Actually, it very good resource to go through. (! but be careful with manifest file. don't change anything if you are not sure)

3) If you don't want to go far, just try to change the API in the activity_main.xml file: 1. Go to design tab ( there are design and text tabs if you noticed) 2. Open the (Android version to use when rendering layout in the IDE - little android icon), uncheck (Automatically pick the best) and push (Preview Android Version), several screens appear with the android version names above them, find there the one you need, click it and then in the very drop-down menu delete other views. :)

Sorry for long text and my English. I hope this will help you.