# does UE5.5 support iOS SDK 18 (required for appstore connect)?

**URL:** <https://forums.unrealengine.com/t/does-ue5-5-support-ios-sdk-18-required-for-appstore-connect/2494006>\
**Category:** Platform & Builds\
**Tags:** unreal-engine, editor, question\
**Created:** [May 6, 2025, 5:59pm UTC](https://forums.unrealengine.com/t/does-ue5-5-support-ios-sdk-18-required-for-appstore-connect/2494006 "2025-05-06T17:59:08Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![Kris1402](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Kris1402](https://forums.unrealengine.com/u/Kris1402)\
**Post date:** [June 5, 2025, 8:01am UTC](https://forums.unrealengine.com/t/does-ue5-5-support-ios-sdk-18-required-for-appstore-connect/2494006/10 "2025-06-05T08:01:35Z")

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> [@\[UE 5.4 iOS\] Unknown Cook Failure During Packaging – App Store Also Requires iOS 18 SDK](https://forums.unrealengine.com/t/ue-5-4-ios-unknown-cook-failure-during-packaging-app-store-also-requires-ios-18-sdk/2537190):
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> Hi everyone, I’m trying to package my iOS game project in Unreal Engine 5.4 using a remote Mac build server (via SSH). The build step completes successfully, but the process fails during the cook stage with the error: AutomationTool exiting with ExitCode=25 (Error\_UnknownCookFailure) The log doesn’t clearly indicate the root cause, even though all assets and plugins appear to load correctly. Here’s a summary of my setup: UE Version: 5.4 (Windows host) Remote Mac: Xcode 16.3 Target: iOS SDK …

Please help me I have the same error while using remote build through mac ios sdk 18 and xcode 16.3. So I need to upgrade atleast to UE5.6 to fix the error?

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