我有一个现有的react-native项目，在创建新的ios小部件目标后，不修改任何内容，然后构建，我收到编译错误：
Undefined symbols for architecture x86_64:
"_swift_getOpaqueTypeConformance", referenced from:
money24h_widgetExtension.money24h_widget.body.getter : some in money24h_widget-a02bbe01bccb475d9f71a206fd2ab70cfae065911d2c861c9ce9e26d51e21bf8.o
associated type witness table accessor for SwiftUI.View.Body : SwiftUI.View in money24h_widgetExtension.money24h_widgetEntryView : SwiftUI.View in money24h_widgetExtension in money24h_widget-a02bbe01bccb475d9f71a206fd2ab70cfae065911d2c861c9ce9e26d51e21bf8.o
associated type witness table accessor for SwiftUI.Widget.Body : SwiftUI.WidgetConfiguration in money24h_widgetExtension.money24h_widget : SwiftUI.Widget in money24h_widgetExtension in money24h_widget-a02bbe01bccb475d9f71a206fd2ab70cfae065911d2c861c9ce9e26d51e21bf8.o
associated type witness table accessor for SwiftUI.PreviewProvider.Previews : SwiftUI.View in money24h_widgetExtension.money24h_widget_Previews : SwiftUI.PreviewProvider in money24h_widgetExtension in money24h_widget-a02bbe01bccb475d9f71a206fd2ab70cfae065911d2c861c9ce9e26d51e21bf8.o
l_get_witness_table qd__7SwiftUI19WidgetConfigurationHD2_AaBP0C3KitE11descriptionyQrAA18LocalizedStringKeyVFQOyAcDE24configurationDisplayNameyQrAGFQOyAD06IntentD0Vy24money24h_widgetExtension0dM0CAK0n1_O9EntryViewVG_Qo__Qo_HO in money24h_widget-a02bbe01bccb475d9f71a206fd2ab70cfae065911d2c861c9ce9e26d51e21bf8.o
"_swift_getTypeByMangledNameInContextInMetadataState", referenced from:
___swift_instantiateConcreteTypeFromMangledNameAbstract in money24h_widget-a02bbe01bccb475d9f71a206fd2ab70cfae065911d2c861c9ce9e26d51e21bf8.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Swift 版本已配置为 5。
似乎没有其他人遇到这个问题。
我该如何构建它？
幸运的是，经过半个小时的寻找。
发现同样的情况here https://ospfranco.github.io/post/2020/08/14/ios-14-widgets-and-react-native/
解决方案在这里 https://github.com/facebook/react-native/issues/29246#issuecomment-663986438来自Github。
Change LIBRARY_SEARCH_PATHS from:
"\"$(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
to:
"\"$(TOOLCHAIN_DIR)/usr/lib/swift-5.2/$(PLATFORM_NAME)\"",
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