适用于iOS和macOS的变通方案（未使用Catalyst进行测试）：

extension Foundation.Bundle {
    static var swiftUIPreviewsCompatibleModule: Bundle {
        final class CurrentBundleFinder {}

        /* The name of your local package, prepended by "LocalPackages_" for iOS and "PackageName_" for macOS. You may have same PackageName and TargetName*/
        let bundleNameIOS = "LocalPackages_TargetName"
        let bundleNameMacOs = "PackageName_TargetName"

        let candidates = [
            /* Bundle should be present here when the package is linked into an App. */
            Bundle.main.resourceURL,

            /* Bundle should be present here when the package is linked into a framework. */
            Bundle(for: CurrentBundleFinder.self).resourceURL,

            /* For command-line tools. */
            Bundle.main.bundleURL,

            /* Bundle should be present here when running previews from a different package (this is the path to "…/Debug-iphonesimulator/"). */
            Bundle(for: CurrentBundleFinder.self).resourceURL?.deletingLastPathComponent().deletingLastPathComponent().deletingLastPathComponent(),
            Bundle(for: CurrentBundleFinder.self).resourceURL?.deletingLastPathComponent().deletingLastPathComponent(),
        ]

        for candidate in candidates {
            let bundlePathiOS = candidate?.appendingPathComponent(bundleNameIOS + ".bundle")
            let bundlePathMacOS = candidate?.appendingPathComponent(bundleNameMacOs + ".bundle")

            if let bundle = bundlePathiOS.flatMap(Bundle.init(url:)) {
                return bundle
            } else if let bundle = bundlePathMacOS.flatMap(Bundle.init(url:)) {
                return bundle
            }
        }

        fatalError("unable to find bundle")
    }
}

然后将对Bundle.module的调用替换为Bundle.swiftUIPreviewsCompatibleModule。

• • 更新1：**

抱歉，我上一篇文章不准确。这是Xcode中的一个bug，没有解决办法。刚刚向苹果提交了一个bug报告（FB8880328）。此外，还发布了一个详细的示例代码w/repro步骤here。直接链接到GitHub项目：https://github.com/ryanholden8/SwiftUI-Preview-Failing-Test-Project

• • 旧职位：**

做同样的事情，把颜色放在一个单独的包里，也得到了这个错误。这篇文章帮助我找到了问题的根源。我删除了颜色包中生成的默认类。但是，我没有删除基于那个默认类的单元测试。

• • 简而言之：**删除Common包中自动生成的单元测试。或者确保所有单元测试都通过。

这在Xcode 14.2中很管用

private extension Bundle {
    private static let packageName = "PACKAGE_NAME"
    private static let moduleName = "MODULE_NAME"
    
    #if targetEnvironment(simulator)
    static var swiftUIPreviewsCompatibleModule: Bundle {
        final class CurrentBundleFinder {}

        let isPreview = ProcessInfo.processInfo.environment["XCODE_RUNNING_FOR_PREVIEWS"] == "1"
        
        guard isPreview else {
            return Bundle.module
        }
        
        // This is a workaround for SwiftUI previews
        // previews crash when accessing other package view using assets from Bundle.module
        
        let bundleName = "\(packageName)_\(moduleName).bundle"
        
        func bundle(stepsBack: Int) -> Bundle? {
            var bundleURL = Bundle(for: CurrentBundleFinder.self).bundleURL
            for _ in 1...stepsBack { bundleURL.deleteLastPathComponent() }
            bundleURL.appendPathComponent(moduleName)
            bundleURL.appendPathComponent("Products")
            bundleURL.appendPathComponent("Debug-iphonesimulator")
            bundleURL.appendPathComponent("PackageFrameworks")
            
            let directories: [String]
            do {
                directories = try FileManager.default.contentsOfDirectory(atPath: bundleURL.path)
            } catch {
                return nil
            }
            
            guard let matchingDir = directories.first(where: { $0.hasSuffix(".framework") }) else {
                return nil
            }
            
            bundleURL.appendPathComponent(matchingDir)
            bundleURL.appendPathComponent(bundleName)
            
            return Bundle(url: bundleURL)
        }
        
        // Steps back 5 is a workaround for crashes
        // when another module is importing this module
        return bundle(stepsBack: 5) ?? .module
    }
    #else
    static var swiftUIPreviewsCompatibleModule: Bundle { .module }
    #endif
}