I’m facing an issue while compiling a project with a CustomSDK on Xcode 16.0 Beta 6. The following error is displayed during the build process:
Failed to build module 'CustomSDK'; this SDK is not supported by the compiler (the SDK is built with 'Apple Swift version 5.9 (swiftlang-5.9.0.128.108 clang-1500.0.40.1)', while this compiler is 'Apple Swift version 6.0 effective-5.10 (swiftlang-6.0.0.9.10 clang-1600.0.26.2)'). Please select a toolchain which matches the SDK.
Steps I have taken so far:
Set the BUILD_LIBRARY_FOR_DISTRIBUTION build setting to YES in the post_install script to ensure forward compatibility.
Cleaned the project and deleted Derived Data.
Verified that the latest SDK version was compiled using Swift 5 in Xcode 15.2, which should ensure compatibility with future versions.
Tried re-adding the SDK pod and rebuilt the project.
Despite these steps, the issue persists on Xcode 16 Beta 6. I suspect the problem could be related to a beta version of Xcode and compatibility issues, but I need guidance on how to ensure the SDK works with Xcode 16.
Is this a known issue with Swift versioning in the beta release? Are there any workarounds or specific changes I should apply to make the SDK work with Xcode 16 Beta 6?
Any help or suggestions would be appreciated!
Selecting any option will automatically load the page