"exception" file not found using 10.14 SDK in Xcode 16

Developer Tools & Services Xcode
Adobe Wan Kenobe OP
Created Apr ’25
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I compile plugins for various versions of Adobe Illustrator, and version 25 (Illustrator 2021) requires the 10.14 SDK, which I have manually added to the contents of the Xcode app as described here: http://hotdoorcore.com/gettingstarted.php

I also added the c++ include headers as described there also. For other older SDKs it works perfectly, but for 10.14 SDK it cannot find this file:

Macintosh HD:Applications:Xcode.app:Contents:Developer:Platforms:MacOSX.platform:Developer:SDKs:MacOSX10.14.sdk:usr:include:c++:4.2.1:exception

In some projects it cannot find the "memory" file. The same projects compiled perfectly from Xcode 14, which I can no longer use since upgrading from Sonoma to Sequoia on my 2019 i9 iMac.

Any suggestions would be much appreciated.

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DTS Engineer OP
Apple
Apr ’25

Each Xcode version only supports the SDKs it ships with. For Xcode 16, that means it supports the macOS 15 SDK only. The instructions you linked to take an approach that Apple doesn't support.

— Ed Ford,  DTS Engineer

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"exception" file not found using 10.14 SDK in Xcode 16
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