When I use Xcode26.1 or Xcode26.0.1 compile my project, Xcode failed with error error: cannot execute tool 'metal' due to missing Metal Toolchain; use: xcodebuild -downloadComponent MetalToolchain. I search around and found this is a known issue and fixed in Xcode26, but I get this error in latter versions. I tried all the methods in documents(https://developer.apple.com/documentation/xcode-release-notes/xcode-26-release-notes) to intall Metal component, but it still compile error with the same error. I also delete Xcode and all related components restart computer and reinstall Xcode26.1, it's not work also.
macOS version: 26.0.1 (25A362) Xcode version: 26.1 MetalToolchain version: 17.0 (17B54)]
after two days try I fixed this problem by followed the methods in this article(https://medium.com/@sergey-pekar/how-to-fix-annoying-xcode-26-not-building-swiftui-previews-error-cannot-execute-tool-metal-due-49564e20357c), I think it is also has a bug for install Metal Toolchain at least for those migrated from Xcode26 Beta