I looked at several similar questions and still cannot get it to work. When I archive and load the application in the application store, I get an error message:
Failed to complete iTunes Store operation. There is no 64-bit support. beginning February 1, 2015, new iOS apps uploaded to the App Store should include 64-bit support and be built using the iOS 8 SDK included in Xcode 6 or later. To enable a 64-bit project, we recommend that you use the default Xcode setting for "Standard architectures" to create a single binary with 32-bit and 64 -...
As suggested in other questions / answers, I brought my application to the recommended settings, installed standard architectures and valid architectures to enable arm64 (see below) 
This did not work, I received the same error message while trying to download the application. I do not have iOS devices connected to my machine when you do this. I also read that some third-party libraries can do this, but I believe that the only third-party libraries that I use are Google Analytics and Google Mobile Ads, both of which I updated recently (I even tried to remove Google Analytics, but that too didn't work) See the Related Libraries section: 
Having done all this, I do not understand why the error message still appears. I also tried to remove Derived Data. Is there another parameter in one of the classes that can block support for an application from 64-bit? How to get this application to support 64-bit?
Questions / Answers I have already tried:
IOS app: 64-bit missing
iOS: standard architectures enabled, but iTunes doesn't recognize 64 bit support
IOS application feed: 64-bit missing
Why was there no 64-bit support when downloading to iTunes connect?
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