Export failed with Il2cpp on Android

I tried compiling with Il2cpp after my app was crashing unexpectely on my Android device without any apparently reasons on Mono2x(Before upgrading my device at 7.0 and upgrading unity at 5.5 everything was fine). Now the Il2cpp get me an error:

Failed running C:\Program Files\Unity\Editor\Data\il2cpp/build/il2cpp.exe --convert-to-cpp --emit-null-checks --enable-array-bounds-check --compile-cpp --libil2cpp-static --platform="Android" --architecture="ARMv7" --configuration="Release" --outputpath="D:\flappy-balls\FlappyBalls\Temp/StagingArea\assets\bin\Data\Native\armeabi-v7a\libil2cpp.so" --cachedirectory="D:\flappy-balls\FlappyBalls\Assets..\Library\il2cpp_android_armeabi-v7a/il2cpp_cache" --additional-include-directories="C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\bdwgc/include" --additional-include-directories="C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\libil2cpp/include" --tool-chain-path="C:/android-ndk-r10e" --extra-types.file="C:\Program Files\Unity\Editor\Data\il2cpp\il2cpp_default_extra_types.txt" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\Assembly-CSharp-firstpass.dll" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\Assembly-CSharp.dll" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\UnityEngine.Advertisements.dll" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\UnityEngine.UI.dll" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\UnityEngine.Analytics.dll" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\UnityEngine.dll" --assembly="D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Managed\mscorlib.dll" --generatedcppdir="D:\flappy-balls\FlappyBalls\Temp\StagingArea\Il2Cpp\il2cppOutput"

stdout: Building libil2cpp.so with AndroidToolChain. Output directory: D:\flappy-balls\FlappyBalls\Temp\StagingArea\assets\bin\Data\Native\armeabi-v7a Cache directory: D:\flappy-balls\FlappyBalls\Library\il2cpp_android_armeabi-v7a\il2cpp_cache ObjectFiles: 458 of which compiled: 458 Time Compile: 52588 milliseconds Il2CppAttributes.cpp Time Compile: 51593 milliseconds Bulk_mscorlib_6.cpp Time Compile: 46477 milliseconds Bulk_Generics_8.cpp Time Compile: 46472 milliseconds Bulk_mscorlib_1.cpp Time Compile: 37293 milliseconds Il2CppInvokerTable.cpp Time Compile: 28150 milliseconds Bulk_UnityEngine.UI_0.cpp Time Compile: 25710 milliseconds GenericMethods0.cpp Time Compile: 25202 milliseconds Bulk_mscorlib_7.cpp Time Compile: 24945 milliseconds Bulk_mscorlib_3.cpp Time Compile: 24574 milliseconds Bulk_UnityEngine_1.cpp Total compilation time: 148848 milliseconds. il2cpp.exe didn't catch exception: Unity.IL2CPP.Building.BuilderFailedException: @"C:\Users\Stefano\AppData\Local\Temp\tmpB6E6.tmp" -o "D:\flappy-balls\FlappyBalls\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\linkresult_90ACCBBC1BA9BA0B735A25056579A3E9\libil2cpp.so" -Wl,-soname,libil2cpp.so -shared -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--gc-sections -Wl,--build-id --sysroot "C:\android-ndk-r10e\platforms\android-9\arch-arm" -gcc-toolchain "C:\android-ndk-r10e\toolchains\arm-linux-androideabi-4.9\prebuilt\windows-x86_64" -target armv7-none-linux-androideabi -L "C:\android-ndk-r10e\sources\cxx-stl\gnu-libstdc++\4.9\libs\armeabi-v7a" -lgnustl_static -fuse-ld=gold

in Unity.IL2CPP.Building.CppProgramBuilder.PostprocessObjectFiles(IEnumerable`1 objectFiles, CppToolChainContext toolChainContext) in Unity.IL2CPP.Building.CppProgramBuilder.Build() in il2cpp.Program.DoRun(String[] args) in il2cpp.Program.Run(String[] args) in il2cpp.Program.Main(String[] args) stderr:

Eccezione non gestita: Unity.IL2CPP.Building.BuilderFailedException: @"C:\Users\Stefano\AppData\Local\Temp\tmpB6E6.tmp" -o "D:\flappy-balls\FlappyBalls\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\linkresult_90ACCBBC1BA9BA0B735A25056579A3E9\libil2cpp.so" -Wl,-soname,libil2cpp.so -shared -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--gc-sections -Wl,--build-id --sysroot "C:\android-ndk-r10e\platforms\android-9\arch-arm" -gcc-toolchain "C:\android-ndk-r10e\toolchains\arm-linux-androideabi-4.9\prebuilt\windows-x86_64" -target armv7-none-linux-androideabi -L "C:\android-ndk-r10e\sources\cxx-stl\gnu-libstdc++\4.9\libs\armeabi-v7a" -lgnustl_static -fuse-ld=gold

in Unity.IL2CPP.Building.CppProgramBuilder.PostprocessObjectFiles(IEnumerable`1 objectFiles, CppToolChainContext toolChainContext) in Unity.IL2CPP.Building.CppProgramBuilder.Build() in il2cpp.Program.DoRun(String[] args) in il2cpp.Program.Run(String[] args) in il2cpp.Program.Main(String[] args)

UnityEngine.Debug:LogError(Object) UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase, Action`1) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:96) UnityEditorInternal.IL2CPPBuilder:RunIl2CppWithArguments(List`1, Action`1, String) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:281) UnityEditorInternal.IL2CPPBuilder:ConvertPlayerDlltoCpp(ICollection`1, String, String) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:272) UnityEditorInternal.IL2CPPBuilder:Run() (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:126) UnityEditorInternal.IL2CPPUtils:RunIl2Cpp(String, String, IIl2CppPlatformProvider, Action`1, RuntimeClassRegistry, Boolean) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:32) UnityEditor.HostView:OnGUI()