ios - 1个重复的体系结构arm64的符号-Xcode-想法用尽

Question

我已经有几天这个问题了，到目前为止，我已经尝试了Stackoverflow上的所有内容，却无处可寻，我也不知道该怎么办。
错误:

ld: 1 duplicate symbol for architecture arm64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

有什么建议？
将bin粘贴到整个日志中:
https://pastebin.pl/view/dfc1fdca
日志中的相关条目:

Showing Recent Messages
Ld /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Products/Debug-iphoneos/Countdown\ Widget.app/Countdown\ Widget normal (in target 'Countdown Widget' from project 'Countdown Widget')
    cd /Users/bradleycable/Desktop/Stuff/Countdown\ Widget
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -target arm64-apple-ios14.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.2.sdk -L/Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Products/Debug-iphoneos -F/Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Products/Debug-iphoneos -F/Users/bradleycable/Desktop/Stuff/Countdown\ Widget -filelist /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/Countdown\ Widget.build/Debug-iphoneos/Countdown\ Widget.build/Objects-normal/arm64/Countdown\ Widget.LinkFileList -Xlinker -rpath -Xlinker @executable_path/Frameworks -dead_strip -Xlinker -object_path_lto -Xlinker /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/Countdown\ Widget.build/Debug-iphoneos/Countdown\ Widget.build/Objects-normal/arm64/Countdown\ Widget_lto.o -Xlinker -no_deduplicate -fobjc-link-runtime -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphoneos -L/usr/lib/swift -Xlinker -add_ast_path -Xlinker /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/Countdown\ Widget.build/Debug-iphoneos/Countdown\ Widget.build/Objects-normal/arm64/Countdown_Widget.swiftmodule -framework Foundation -framework UIKit -Xlinker -no_adhoc_codesign -Xlinker -dependency_info -Xlinker /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/Countdown\ Widget.build/Debug-iphoneos/Countdown\ Widget.build/Objects-normal/arm64/Countdown\ Widget_dependency_info.dat -o /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Products/Debug-iphoneos/Countdown\ Widget.app/Countdown\ Widget -Xlinker -add_ast_path -Xlinker /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/SQLite.swift.build/Debug-iphoneos/SQLite.build/Objects-normal/arm64/SQLite.swiftmodule

duplicate symbol '_main' in:
    /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/Countdown Widget.build/Debug-iphoneos/Countdown Widget.build/Objects-normal/arm64/Wtarget-fb79391fc42d00bcc0af801429653506c80531174bbc6c7603c27c78464dee8a.o
    /Users/bradleycable/Library/Developer/Xcode/DerivedData/Countdown_Widget-hhxapyypudwfqifpmwtzlpoaerys/Build/Intermediates.noindex/Countdown Widget.build/Debug-iphoneos/Countdown Widget.build/Objects-normal/arm64/Countdown_WidgetApp.o
ld: 1 duplicate symbol for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

这是链接期间由于多个文件导出相同符号而出现的典型错误。
特别是对于这篇文章，您的项目中有两个文件声明了main函数:

Countdown_WidgetApp，

和奇怪的Wtarget-fb79391fc42d00bcc0af801429653506c80531174bbc6c7603c27c78464dee8a

查看这些文件的内容，然后从项目中删除一个文件，或者从其中一个文件中删除 main声明。