error building in xcode from unity ios build. "duplicate symbols for architecture x86_64"

[rokngo]

I am building an app from unity 5.3 personal edition, which builds and tests fine. When I open the project into xcode 6.1 to test it, I only get one error: “apple mach o linker error” with “1730 duplicate symbols for architecture x86_64”.
I have no idea why this is, and whenever I watch tutorials noone seems to get the same problem. AND I HAVE NO IDEA WHY. Can someone please help me, I will provide anything anyone needs to help with with the problem. The following is a sample of the error. Thanks. (i am relatively new to unity and to xcode so any help would be much appreciated.)
I am not going to post all 1730 errors but they all look similar and google doesnt help.

duplicate symbol _llvm.cmdline in:
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(fmod_debug.o)
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(apicontext.o)
duplicate symbol _llvm.embedded.module in:
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(fmod_debug.o)
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(apicontext.o)
duplicate symbol _llvm.cmdline in:
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(fmod_debug.o)
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(apihandle.o)
duplicate symbol _llvm.embedded.module in:
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(fmod_debug.o)
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(apihandle.o)
duplicate symbol _llvm.cmdline in:
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(fmod_debug.o)
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(apiversion.o)
duplicate symbol _llvm.embedded.module in:
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(fmod_debug.o)
/Users/rokngo/Desktop/Unity/Wright Orthodontics app/Builds/Wright ortho app. a1.0.1/Libraries/libiPhone-lib.a(apiversion.o)
ld: 1730 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[kgbv]

i too facing similar issue .

ld: warning: arm64 function not 4-byte aligned: _unwind_tester from /Users/deepan/Documents/YVT/unitylearn/ludo/ios/ludogame4/Libraries/libiPhone-lib.a(unwind_test_arm64.o)

duplicate symbol ‘_UnityAdsCopyString’ in:
/Users/deepan/Library/Developer/Xcode/DerivedData/Unity-iPhone-gkyynjxsvarviodbtmfmprnfzbbb/Build/Intermediates.noindex/Unity-iPhone.build/ReleaseForRunning-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUnityWrapper.o
/Users/deepan/Library/Developer/Xcode/DerivedData/Unity-iPhone-gkyynjxsvarviodbtmfmprnfzbbb/Build/Intermediates.noindex/Unity-iPhone.build/ReleaseForRunning-iphoneos/Unity-iPhone.build/Objects-normal/arm64/UnityAdsUtilities.o
ld: 1 duplicate symbol for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

note :

i have already removed the UnityAdsUnityWrapper.m file under build phases.

please see the screenshot.

if i tried to remove the UnityAdsUnityWrapper.mm also . i am getting errors