Xcode Apple Mach-O Linker Fehler

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  • Xcode Apple Mach-O Linker Fehler

    Hallo, ich bin völliger xcode neuling und bekomme diesen fehler, bitte um Lösung :(
    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/2.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/2.o

    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/3.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/3.o

    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/4.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/4.o

    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/5.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/5.o

    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/7.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/7.o

    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/8.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/8.o

    duplicate symbol _OBJC_CLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/9.o

    duplicate symbol _OBJC_METACLASS_$__ in:

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/1.o

    /Users/michiMichi/Library/Developer/Xcode/DerivedData/bf3screens-gqjxewmbuxusbndeqqfhuurdagny/Build/Intermediates/bf3screens.build/Debug-iphonesimulator/bf3screens.build/Objects-normal/i386/9.o

    ld: 14 duplicate symbols for architecture i386

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