Urgent please. Can't Find Scene in build settings while scene is in build settings.

I am using unity 4.5.4. I have 2 scenes in my project. Whenever I try to switch from first scene to second scene it gives me error on my android device that, cant find scene in build settings. This issue occurs in android device whenever I build an apk file and try to manually install that apk on my phone. But this issue is resolved whenever I try to Build and Run that apk in my phone.

I published that apk on store and downloaded and installed it on my device and same issue occurs. Please help.... I cant figure out what is the issue because whenever I build and run project on device it works fine. But it doesnt whenever i manually install apk.