My app doesn't run in android

Hi !

My name is belkacem and this is first time that i use unity3d , i was create a simple scene to test for android , and i install android sdk correctly and i build my app for android and generate apk file , but when i run the app in emulator it doesn’t run at all .

any help please !

E/Unity ( 836): Invalid serialized file version. File: "/data/app/com.Company.ProductName-1.apk/assets/bin/Data/mainData". Expected version: 4.1.2f1. Actual version: 4.1.3f3.

You mixing Unity versions? Looks like your code is built with 4.1.2f1, and your data with 4.1.3f3.