Please make sure you have "release.2016.14" or later of the AEM Mobile Signing Tool. To download the latest signing tool, you may follow directions here: Signing iOS and Android apps for AEM Mobile​. Then, use the AEM Mobile Signing Tool to sign the application you downloaded from the Apps section of the On-Demand Portal. Be sure that the Certificate you choose matches the Mobile Provision you choose. This relationship was established when you generated the mobile provision in the Certificates, ...

Hi lkjdfaslkdfas,Please make sure that you are using Application Loader included with Xcode 8. The version of Application Loader should be 3.6 or higher.