Hi! I have already posted this already but i am posting it again because it did not solve my issue.... So basically we have created the app where user can login and register. It works on emulator but not on my android device. The database is connected using node.js so it is connected remotely. Do you think the android device is not getting the server/database ?? I have no idea because login and register works on emulator so i assume that database connection is working. I am also getting this error so will post the image below. It says "no compatible code running" and system.nullreferenceexception.