swift - Xcode 12和SwiftUI : Cannot preview in this file — Failed to update preview

Question

似乎预览停止在Xcode 12上运行!尝试预览SwiftUI文件模板并出现以下错误。任何想法如何解决这一问题？试图清理构建文件夹，删除派生数据并重新启动Xcode无济于事!
在Catalina 10.15.6上。

RemoteHumanReadableError: Failed to update preview.

The preview process appears to have crashed.

Error encountered when sending 'prepare' message to agent.

==================================

|  RemoteHumanReadableError: The operation couldn’t be completed. (BSServiceConnectionErrorDomain error 3.)
|  
|  BSServiceConnectionErrorDomain (3):
|  ==BSErrorCodeDescription: OperationFailed

我正在尝试预览的代码(来自SwiftUI新文件模板):

import SwiftUI

struct SwiftUIView: View {
    var body: some View {
        Text("Hello, World!")
    }
}

struct SwiftUIView_Previews: PreviewProvider {
    static var previews: some View {
        SwiftUIView()
    }
}

Answer 1

显然，这是Firestore的错误，很可能是原因:XCode 12 Preview Crashes when adding Firebase SDK Swift UI 2.0。此时最好的解决方案是调用 pod pod 来解决此问题。我在iOS 13以上的Xcode 12上进行了验证。