duplicate symbols for architecture arm64 after Xcode 8.0 update

ios xcode architecture updates arm64
Andreea Mateevici picture Andreea Mateevici · Sep 15, 2016 · Viewed 16.6k times · Source

I get duplicate symbols error after I updated my Xcode. (find the code down) Does anybody get this too? And how could be solved?

I tried to remove -ObjC linker flag from the "Other Linker Flags" section, check after imported .m instead of .h, switch the "No Common Blocks" compiler setting to NO, I went to Targets -> Build Phases -> Compile sources and no duplicates there, tried all with no results.

Any other ideas?

duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/FollowingUserViewController.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/ChatViewController.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/MessagesNotifications.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/AppDelegate.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/PicturesCell.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SMAPMainViewController.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/CheckUserTypeViewController.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SmaptersNearYou.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/PostSlider.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/UserSettings.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/EventSliderCell.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/UserProfile.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/EventCell.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/NewsFeed.o duplicate symbol _textViewMaxHeight in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/EventSliderCell.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/ExpressSliderCell.o duplicate symbol _textViewStandardHeight in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/EventSliderCell.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/ExpressSliderCell.o duplicate symbol _textViewStep in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/EventSliderCell.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/ExpressSliderCell.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/FollowerUserViewController.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/FilterAlertView.o duplicate symbol _space in: /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/SearchView.o /Users/a/Library/Developer/Xcode/DerivedData/SMAP-bshetjpaaresiudzvoubtutnfvuq/Build/Intermediates/SMAP.build/Debug-iphoneos/SMAP.build/Objects-normal/arm64/UserNotificationsViewController.o ld: 20 duplicate symbols for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer

Renish Dadhaniya picture Renish Dadhaniya · Sep 22, 2016

Below Patch work for me..:)

Code recommended to use warning flags and set GCC_NO_COMMON_BLOCKS to YES.

Setting it back to NO solved the problem!enter image description here

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