Device Anywhere - App may not be signed

I am building my application using XCode 6 and App Store provisioning profile. After creating the application, I tried to upload it in Device Anywhere (Keynote), but it is giving me an error saying the app might be unsigned and that I need to sign it. I also tried it with AdHoc profile, but it is the same.

To verify, I installed the application on my test device, the one signed with AdHoc and it is working properly. I also verified the IPAs with security cms command and the IPA are getting generated properly.

Any help regarding this will be helpful.