Unable to build with Xcode 26 for visionOS

[levinli303]

Platform

visionOS

Environment

Other

Installed

Swift Package Manager

Version

8.53.2

Xcode Version

26.0 beta 3

Did it work on previous versions?

16.4

Steps to Reproduce

1. create an Xcode project with iOS target and add visionOS support
2. add code that starts Sentry
3. build the project

Expected Result

Should build fine

Actual Result

The build fails in Compiling Swift module Sentry

<unknown>:0: error: C99 was enabled in PCH file but is currently disabled
<unknown>:0: error: module file /Users/[redacted]/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/SwiftShims-8E9KY877QCTXDJCE0XIKBPGI7.pcm cannot be loaded due to a configuration mismatch with the current compilation
<unknown>:0: error: missing required module 'SwiftShims'

Are you willing to submit a PR?

No response

[linear]

COCOA-483 Unable to build with Xcode 26 for visionOS

[philipphofmann]

I just tried compiling a sample project including sentry-cocoa 8.53.2 via SPM on Xcode 26 beta 3 and it worked.

You can often resolve errors with SwiftShims by doing a clean build or clearing the ~/Library/Developer/Xcode/DerivedData folder. Please let us know if that works.

[vedlai]

I have the same issue, 8.53.2, Xcode 26, Tahoe, Swift 6. Cleaned Derived Data and Clean Build.

This might be of help, seems similar environment.

firebase/firebase-ios-sdk#14950

[philipphofmann]

@vedlai, thanks for the hint. I tried using Sentry-Cocoa 8.53.2 with Xcode 26 beta.3 and Swift 6 on macOS 15.5, and was unable to reproduce the issue. It could be related to macOS Tahoe. Could you maybe provide us with a small sample app, so we can reproduce it?

[vedlai]

@philipphofmann I think it is Tahoe and I think it is any visionOS app. I started a blank app and got the same error.

I think it is related to Tahoe because the Firebase example was Tahoe as well.

It seems to be isolated to Sentry and not Sentry SwiftUI.

Clarification: Sentry SwiftUI does not work either but I think it is because Sentry doesn't work.

[philipphofmann]

I started a blank app and got the same error.

@vedlai, do you mean a blank app with or without Sentry?

[vedlai]

@philipphofmann Adding Sentry

So a brand new visionOS project on Tahoe and Xcode Beta then just add Sentry with SPM.

[levinli303]

I'm on Sequoia so probably not related to being on Tahoe.

[philprime]

Probably related to #5435