Previews broken when adding FluentUI through SPM

[spelaez]

Environment Information

• Platform:
  • [x ] iOS
  • macOS
• Package version(s): 0.28.0
• Xcode and OS versions: Xcode 15.4 and Xcode 16 beta.

Please provide a reproduction of the bug:

• Create a Swift Package
• Add fluentUI as dependency in the Package.swift file
• In the autogenerated swift file on the package, create a basic preview with any text
• Try to run the preview

Actual behavior:

Previews can't run, with the following error

Xcode 16.0 Beta

== PREVIEW UPDATE ERROR:

    StubError
    
    StubError: could not generate preview info: unableToFindTarget

Xcode 15.4 fails, because even though the Package is specified as iOS only it tries to build the macOS version of Fluent, this however, seems to be a bug of Xcode 15.x

Expected behavior:

Adding FluentUI shouldn't break previews

Priorities and help requested:

Requested priority: Normal

Here's my Package.swift if it helps

// swift-tools-version: 6.0
// The swift-tools-version declares the minimum version of Swift required to build this package.

import PackageDescription

let package = Package(
  name: "FluentTest",
  platforms: [.iOS(.v16)],
  products: [
    .library(
      name: "FluentTest",
      targets: ["FluentTest"]),
  ],
  dependencies: [
    .package(url: "https://github.com/microsoft/fluentui-apple.git", .upToNextMinor(from: "0.28.0"))
  ],
  targets: [
    .target(
      name: "FluentTest",
      dependencies: [
        .product(name: "FluentUI", package: "fluentui-apple")
      ]
    ),
    .testTarget(
      name: "FluentTestTests",
      dependencies: ["FluentTest"]
    )
  ]
)

[zjhch123]

same issue here

[spelaez]

Issue no longer happens with Xcode 16 releases