Swift 为什么我的Xcode模拟器只是给我显示一个黑屏？没有场景代理集？

我以前也见过类似的问题，但这篇帖子很老，没有一个答案对我有用。我正在为cs50的移动轨迹编写一个非常简单的代码，它只是一个小小的pokedex，但每当我运行我的应用程序模拟器时，我都会遇到一个黑屏而不是应用程序

下面是它在调试器中的说明（如果有帮助）：

没有场景委托集。必须指定场景代理类才能使用主情节提要文件。

AppDelegate：

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {



    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return true
    }

    // MARK: UISceneSession Lifecycle

    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
        // Called when a new scene session is being created.
        // Use this method to select a configuration to create the new scene with.
        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }

    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
        // Called when the user discards a scene session.
        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
    }


}

信息：

CfBundledDevelopmentRegion
$（开发语言）
Cbundlexecutable
$（可执行文件名称）
CbundleIdentifier
$（产品\捆绑包\标识符）
CbundleInfo字典版本
6
CFBundleName
$（产品名称）
CbundlePackageType
$（产品\捆绑\包装\类型）
CbundleShortVersionString
1
循环流化床锅炉
1.
LSREQUIRESPHONEOS
UIApplicationSceneManifest
UIApplicationSupportsMultipleScenes
UISCeneConfiguration
UIWindowsCensessionRole应用程序
UISCeneConfiguration名称
默认配置
UISCenedLegateClassName
$（产品\u模块\u名称）.SceneDelegate
UISCenestryBoardFile
主要
UILaunchStoryboardName
发射屏
UIMainstryBoardFile
主要
UIRequiredDeviceCapabilities
armv7
UI支持接口方向
UIInterfaceOrientationPortrait
UIInterface方向和左视图
UIInterfaceOrientationAndscapeRight
UI支持界面方向~ipad
UIInterfaceOrientationPortrait
UIInterfaceOrientation上下方向图
UIInterface方向和左视图
UIInterfaceOrientationAndscapeRight

这是您项目名称中的

。不要那样做

请记住，项目名称不是面向用户的。你可以用一个包含
é
的名字来调用这个应用程序，但不要试图用这样的名字来启动一个项目。糟糕的事情会发生（你只是遇到了其中一个）

我建议你从头开始。这将比尝试重命名项目及其所有相关内容更容易。
这是项目名称中的
。不要那样做

请记住，项目名称不是面向用户的。你可以用一个包含
é
的名字来调用这个应用程序，但不要试图用这样的名字来启动一个项目。糟糕的事情会发生（你只是遇到了其中一个）

我建议你从头开始。这将比尝试重命名项目及其所有相关内容更容易。
您使用的是故事板吗？
ViewController
是否设置为初始视图控制器？如果这些看起来没问题，请尝试使用Xcode的视图调试器来找出它认为屏幕上显示的内容。@PhillipMills我将它给我的消息添加到了我的原始帖子中。如果你能帮助我理解这一点，并告诉我它希望我做什么，那就太好了。你给我们展示了错误的代码。我们需要看到的是应用程序代理、场景代理和Info.plist。还有main.swift，如果有。@matt我添加了应用程序和场景代理。我是Xcode和swift的新手，所以我不确定如何正确地共享info.plist，但我将其添加为源代码。没有主管道。swift@matt我现在把我能做的都加进去了。很抱歉你在用故事板吗？
ViewController
是否设置为初始视图控制器？如果这些看起来没问题，请尝试使用Xcode的视图调试器来找出它认为屏幕上显示的内容。@PhillipMills我将它给我的消息添加到了我的原始帖子中。如果你能帮助我理解这一点，并告诉我它希望我做什么，那就太好了。你给我们展示了错误的代码。我们需要看到的是应用程序代理、场景代理和Info.plist。还有main.swift，如果有。@matt我添加了应用程序和场景代理。我是Xcode和swift的新手，所以我不确定如何正确地共享info.plist，但我将其添加为源代码。没有主管道。swift@matt我现在把我能做的都加进去了。很抱歉
import UIKit

class SceneDelegate: UIResponder, UIWindowSceneDelegate {

    var window: UIWindow?


    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
        guard let _ = (scene as? UIWindowScene) else { return }
    }

    func sceneDidDisconnect(_ scene: UIScene) {
        // Called as the scene is being released by the system.
        // This occurs shortly after the scene enters the background, or when its session is discarded.
        // Release any resources associated with this scene that can be re-created the next time the scene connects.
        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
    }

    func sceneDidBecomeActive(_ scene: UIScene) {
        // Called when the scene has moved from an inactive state to an active state.
        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
    }

    func sceneWillResignActive(_ scene: UIScene) {
        // Called when the scene will move from an active state to an inactive state.
        // This may occur due to temporary interruptions (ex. an incoming phone call).
    }

    func sceneWillEnterForeground(_ scene: UIScene) {
        // Called as the scene transitions from the background to the foreground.
        // Use this method to undo the changes made on entering the background.
    }

    func sceneDidEnterBackground(_ scene: UIScene) {
        // Called as the scene transitions from the foreground to the background.
        // Use this method to save data, release shared resources, and store enough scene-specific state information
        // to restore the scene back to its current state.
    }


}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>$(DEVELOPMENT_LANGUAGE)</string>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>$(PRODUCT_NAME)</string>
    <key>CFBundlePackageType</key>
    <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0</string>
    <key>CFBundleVersion</key>
    <string>1</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>UIApplicationSceneManifest</key>
    <dict>
        <key>UIApplicationSupportsMultipleScenes</key>
        <false/>
        <key>UISceneConfigurations</key>
        <dict>
            <key>UIWindowSceneSessionRoleApplication</key>
            <array>
                <dict>
                    <key>UISceneConfigurationName</key>
                    <string>Default Configuration</string>
                    <key>UISceneDelegateClassName</key>
                    <string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
                    <key>UISceneStoryboardFile</key>
                    <string>Main</string>
                </dict>
            </array>
        </dict>
    </dict>
    <key>UILaunchStoryboardName</key>
    <string>LaunchScreen</string>
    <key>UIMainStoryboardFile</key>
    <string>Main</string>
    <key>UIRequiredDeviceCapabilities</key>
    <array>
        <string>armv7</string>
    </array>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
</dict>
</plist>