MacOS构建Flutter iOS应用时Info.plist Property List报错如何解决？

问题根因 #

该报错由Info.plist 格式不符合苹果 Property List 规范导致：

• plist 标准要求<plist>标签下只能存在1个顶层对象，你的文件中第一个<dict>提前闭合，后续新增的广告、网络权限等配置直接暴露在<plist>根节点下，触发了plist can only include one object的报错
• NSAppTransportSecurity的Key和对应的配置Dict被拆分放置，结构完全错误

修复方案 #

将所有配置项统一放到顶层<dict>内部，修正后的完整Info.plist内容如下：

<?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>NSLocationWhenInUseUsageDescription</key>
    <string>This app needs access to location when open.</string>
    <key>NSCameraUsageDescription</key>
    <string>This app needs access to camera when user prompts it.</string>
    <key>NSPhotoLibraryUsageDescription</key>
    <string>This app needs access to photo library when user prompts it.</string>
    <key>CFBundleDevelopmentRegion</key>
    <string>$(DEVELOPMENT_LANGUAGE)</string>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>appname</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>$(FLUTTER_BUILD_NAME)</string>
    <key>CFBundleSignature</key>
    <string>????</string>
    <key>CFBundleVersion</key>
    <string>$(FLUTTER_BUILD_NUMBER)</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>UILaunchStoryboardName</key>
    <string>LaunchScreen</string>
    <key>UIMainStoryboardFile</key>
    <string>Main</string>
    <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>
    <key>UIViewControllerBasedStatusBarAppearance</key>
    <false/>
    <key>GADApplicationIdentifier</key>
    <string>ca-app-pub-44919293838389292~763277283</string>
    <key>SKAdNetworkItems</key>
    <array>
        <dict>
            <key>SKAdNetworkIdentifier</key>
            <string>cstr6.skadnetwork</string>
        </dict>
    </array>
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsLocalNetworking</key>
        <true/>
    </dict>
</dict>
</plist>

内容的提问来源于stack exchange，提问作者Black Eyed Beans