SDK Version Issue.This app was built with the iOS 14.5 SDK - xcode

ERROR ITMS-90725: "SDK Version Issue. This app was built with the iOS 14.5 SDK. All iOS apps submitted to the App Store must be built with the iOS 15 SDK or later, included in Xcode 13 or later.
My current version is macOs Big Sur version(11.4)
and my xcode version(12.5.1)

You need XCode 13 to use iOS 15 SDK. Simply update your XCode and MacOS (if necessary), then build the app again.
After updating XCode, your iOS SDK will be automatically updated.
Instruction for Older macOS:
Use this patch and upgrade your macOS https://github.com/Ben216k/Patched-Sur
After the upgrade, you can install XCode 13 on your older mac.
Here you can see all the supported mac lists: https://bensova.gitbook.io/big-sur/supported-macs

Below are steps I followed to solve the same issue in the same context:
Upgrade macOs Big Sur -> macOs Monterey v12.4
Update Xcode 12.x -> Xcode 13.x or later
Note: Upgrade could take some minutes. Hence, be patient

Related

Unable to download iOS 11 Simulators for XCode 13.2.1

I'm unable to download iOS 11 Simulators for XCode 13.2.1
what should I do?
You can check supported simulators for specific Xcode version on Apple Xcode support page.
Additionally, as answered on a similar issue, simulator availability depends on the installed MacOS version. While Xcode 13.2.1 seems to support iOS 11 simulators on Big Sur, on Monterey the lowest available version is 12.4.

Xcode 10.2 does not open after installation from App Store

When I try to open Xcode 10.2 after installing it from the App Store, it doesn't open. After a while, a dialog box comes with an error "check with the developer to make sure Xcode works with this version of mac os".
Can anyone help? My Mac OS is Mojave 10.14.2
Xcode 10.2 includes SDKs for iOS 12.2, watchOS 5.2, macOS 10.14.4, and
tvOS 12.2. Xcode 10.2 supports on-device debugging for iOS 8 and
later, tvOS 9 and later, and watchOS 2 and later. Xcode 10.2 requires
a Mac running macOS 10.14.3 or later.
Reference:
https://developer.apple.com/documentation/xcode_release_notes/xcode_10_2_release_notes/

Xcode 10.1 beta 2 Invalid Toolchain

I am going to submit my app to App Store and it finds invalid toolchain .
New apps and app updates must be built with the public (GM) versions. Xcode 9 or later.
Should I reinstall Xcode 10 GM directly instead of beta?
Yes, you must use a stable release of Xcode to submit a build to App Store:
Xcode 10.1 (10B61)
Xcode 10 (10A255)
Xcode 9.4.1 (9F2000)
...
i.e. the versions in bold from this unofficial list: https://xcodereleases.com/
Beta versions of Xcode are only good for TestFlight builds, not App Store builds.
Not also that there is a minimum Xcode version depending on your product platform (iOS, tvOS, macOS): https://help.apple.com/app-store-connect/#/devb1c185036

xcode 4.2 with ios5.1

I have Xcode version 4.2 with OS X 10.7.2, and I was trying to install our app on the new iPad, which is running iOS 5.1. The problem is Xcode doesn't recognize the iPad as a deployable device. I know this is a common issue, but please read it all.
I get this in the organizer: (after push the "use for development")
The version of iOS on “iPad” does not match any of the versions of iOS supported for development with this installation of the iOS SDK. Please restore the device to a version of the OS listed below, or update to the latest version of the iOS SDK; which is available here.
OS Installed on iPad
5.1 (9B176)
Xcode Supported iOS Versions
Latest
5.0 (9A334)
4.3
4.2
Now I know that in order to connect the iOS 5.1 device to Xcode I need the latest release of Xcode, but I can connect another iPhone with iOS 5.1 to the same Xcode and deploy an app to it.
Why is that?
The only different between them is that this iPhone was previously connected to Xcode, and the iPad was not. I did manage to install an app to iPhone with iOS 5.1!
What is happening here? I don't want to install the new Xcode for nothing if I can install to 5.1.
Thanks.
Xcode will not let you build to an iOS version higher than it supports, and in this case with Xcode 4.2, you will not be able to deploy to iOS 5.1. I recommend updating to OS X Lion 10.7.3 and downloading the 4.3.2 version of Xcode. Do this any you will be able to deploy to your 5.1 device without any problems. In addition to this, the second device should not be able to receive builds from Xcode. Please check and see if the device in question is in fact running iOS 5.0.1 and not 5.1 as 5.1 will not work on Xcode 4.2 and 5.0.1 will.

Does Xcode 4.2 beta also come with iOS SDK 4?

If I install Xcode 4.2 and iOS SDK 5 beta (Snow Leopard), will I still be able to build and run for iOS SDK 4?
I would say yes. When you download iOS SDK 4 you can still build for iOS SDK 3. So I don't see why it would be different this time.

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