Unreal Engine Issues and Bug Tracker (UE-41313)

Description

Project fails to build for iOS/tvOS due to:

error: non-portable path to file

errors.

Steps to Reproduce

Create C++ Template project
Compile Project with Xcode 8.2.x toolchain, in Development Editor Build configuration
Open project in UE4Editor
In terminal set code-select to use 8.3 beta
- (e.g.) sudo xcode-select -switch /Applications/Xcode-beta.app
File Package for iOS/tvOS

Result: Build fails to compile

Callstack

In file included from /Users/willfissler/Documents/Unreal Projects/XcodeClangTest/Source/XcodeClangTest/XcodeClangTestGameMode.cpp:3:
In file included from /Users/willfissler/Documents/Unreal Projects/XcodeClangTest/Source/XcodeClangTest/XcodeClangTest.h:6:
In file included from /Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Engine/Public/EngineMinimal.h:10:
In file included from /Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Core/Public/Misc/MonolithicHeaderBoilerplate.h:3:
In file included from /Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Core/Public/CoreTypes.h:10:
/Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Core/Public/HAL/Platform.h:75:11: error: non-portable path to file '"iOS/IOSPlatformCompilerPreSetup.h"'; specified path differs in case from file name on disk [-Werror,-Wnonportable-include-path]
In file included from /Users/willfissler/Documents/Unreal Projects/XcodeClangTest/Source/XcodeClangTest/XcodeClangTestProjectile.cpp:3:
In file included from /Users/willfissler/Documents/Unreal Projects/XcodeClangTest/Source/XcodeClangTest/XcodeClangTest.h:6:
In file included from /Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Engine/Public/EngineMinimal.h:10:
In file included from /Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Core/Public/Misc/MonolithicHeaderBoilerplate.h:3:
In file included from /Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Core/Public/CoreTypes.h:10:
/Users/Shared/UnrealEngine/4.15/Engine/Source/Runtime/Core/Public/HAL/Platform.h:75:11: error: non-portable path to file '"iOS/IOSPlatformCompilerPreSetup.h"'; specified path differs in case from file name on disk [-Werror,-Wnonportable-include-path]
        #include "IOS/IOSPlatformCompilerPreSetup.h"
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                 "iOS/IOSPlatformCompilerPreSetup.h"

Community References

Error in UnrealMathNeon.h when packaging for iOS

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Fixed

Component	UE - Platform - Mobile
Affects Versions	4.15, 4.16
Target Fix	4.15.2, 4.16

Fix Commit	3381845
Main Commit	3383473

Created	Jan 31, 2017
Resolved	Apr 6, 2017
Updated	Sep 16, 2019

UE-41313

Failed to compile C++ Code project, for iOS/tvOS in Development, in Xcode 8.3 beta 1

Failed to compile C++ Code project, for iOS/tvOS in Development, in Xcode 8.3 beta 1

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