Xcode から奇妙な問題が発生しました。コードの問題はなく、この問題を処理する方法がわかりません。Google も使用し、同様の質問を見ましたが、回答は役に立ちませんでした。
duplicate symbol _OBJC_IVAR_$_Level._name in:
..../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build /Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C98F33E28EFA5297.o
/Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C635B4AD47A32079.o
duplicate symbol _OBJC_IVAR_$_Level._type in:
...../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C98F33E28EFA5297.o
...../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C635B4AD47A32079.o
duplicate symbol _OBJC_IVAR_$_Level._binaryImage in:
...../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C98F33E28EFA5297.o
..../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C635B4AD47A32079.o
duplicate symbol _OBJC_CLASS_$_Level in:
..../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C98F33E28EFA5297.o
... ../Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C635B4AD47A32079.o
duplicate symbol _OBJC_METACLASS_$_Level in:
...Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C98F33E28EFA5297.o
......Library/Developer/Xcode/DerivedData/MobileMaps-bfaaljugbcgusoazfkvdbpbdyiqf/Build/Intermediates/MobileMaps.build/Debug-iphonesimulator/MobileMaps.build/Objects-normal/i386/Level-C635B4AD47A32079.o
ld: 5 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)