In android studio, i have create new project that run on 2.2(that shows 100% compatibility). The project is about calculation. I have installed on my phone(lollipop), and the app is working properly. But, I tried to install in my friends kitkat phone, the app is installed but, When i open the app, that shows Unfortunately the app has stopped. So, I need a help. What I have to do?
Thank You.