HOW DO WE CHANGE THE SDK BUILD??
SDK Version Issue - This app was built with the iOS 11.4 SDK. Starting March 2019, all iOS apps submitted to the App Store must be built with the iOS 12.1 SDK or later, included in Xcode 10.1 or later.
HOW DO WE CHANGE THE SDK BUILD??
SDK Version Issue - This app was built with the iOS 11.4 SDK. Starting March 2019, all iOS apps submitted to the App Store must be built with the iOS 12.1 SDK or later, included in Xcode 10.1 or later.
This has already been answered here:
That means I CANNOT launch my app for months?! Apple won’t let me submit the app until it is in 12.1, so basically you’re saying no one can launch anything right?
You can publish your app now… The error is telling you that starting in March, apps must use version 12.1 of the iOS SDK.
Apple said to correct it before resubmitting though. Also, what about the push notification error?
Missing Push Notification Entitlement - Your app appears to register with the Apple Push Notification service, but the app signature’s entitlements do not include the “aps-environment” entitlement. If your app uses the Apple Push Notification service, make sure your App ID is enabled for Push Notification in the Provisioning Portal, and resubmit after signing your app with a Distribution provisioning profile that includes the “aps-environment” entitlement. Xcode 8 does not automatically copy the aps-environment entitlement from provisioning profiles at build time. This behavior is intentional. To use this entitlement, either enable Push Notifications in the project editor’s Capabilities pane, or manually add the entitlement to your entitlements file. For more information, see https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/HandlingRemoteNotifications.html#//apple_ref/doc/uid/TP40008194-CH6-SW1.
After you’ve corrected the issues, you can use Xcode or Application Loader to upload a new binary to iTunes Connect.