App submission on app store gives warning "Missing 64-bit support"

Question

I am uploading an app to the App Store. But unfortunately I get the below warning.

Answer 1

As the warning says, your app isn't prepared for 64-bit, and apple announced a month ago that starting in february 2015 all the apps uploaded to the app store must support it. So, it seems that if you're using iOS 8 you got to enable 64-bit support on you app now.

For supporting 64 bit you got to have in your project build settings the following: