Exception: Il2cp did not run properly.

Hi guys,

I’m just upgraded to U5.6 and build my project using Il2cp but got this ex.

Exception: E:\Unity\Editor\Data\il2cpp/build/il2cpp.exe did not run properly!
UnityEditorInternal.Runner.RunManagedProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1 setupStartInfo) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:98)
UnityEditorInternal.IL2CPPBuilder.RunIl2CppWithArguments (System.Collections.Generic.List`1 arguments, System.Action`1 setupStartInfo, System.String workingDirectory) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:313)
UnityEditorInternal.IL2CPPBuilder.ConvertPlayerDlltoCpp (ICollection`1 userAssemblies, System.String outputDirectory, System.String workingDirectory) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:304)
UnityEditorInternal.IL2CPPBuilder.Run () (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:151)
UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String tempFolder, System.String stagingAreaData, IIl2CppPlatformProvider platformProvider, System.Action`1 modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry, Boolean debugBuild) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:34)
UnityEditor.Android.PostProcessor.Tasks.RunIl2Cpp.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry)
UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (BuildPostProcessArgs args)
UnityEditor.PostprocessBuildPlayer.Postprocess (BuildTargetGroup targetGroup, BuildTarget target, System.String installPath, System.String companyName, System.String productName, Int32 width, Int32 height, System.String downloadWebplayerUrl, System.String manualDownloadWebplayerUrl, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.BuildReporting.BuildReport report) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:186)
UnityEditor.HostView:OnGUI()

Plus

Failed running E:\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="[Project Path]\Temp/StagingArea\assets\bin\Data\Native\armeabi-v7a\libil2cpp.so" --cachedirectory="[Project Path]\Assets\..\Library\il2cpp_android_armeabi-v7a/il2cpp_cache" --additional-include-directories="E:\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\bdwgc/include" --additional-include-directories="E:\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\libil2cpp/include" --tool-chain-path="E:/Android NDK" --map-file-parser="E:\Unity\Editor\Data\Tools\MapFileParser\MapFileParser.exe" --assembly="[Project Path]\Temp\StagingArea\assets\bin\Data\Managed\Assembly-CSharp.dll" --assembly="[Project Path]\Temp\StagingArea\assets\bin\Data\Managed\UnityEngine.UI.dll" --assembly="[Project Path]\Temp\StagingArea\assets\bin\Data\Managed\UnityEngine.dll" --generatedcppdir="[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput" 

stdout:
Building libil2cpp.so with AndroidToolChain.
	Output directory: [Project Path]\Temp\StagingArea\assets\bin\Data\Native\armeabi-v7a
	Cache directory: [Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache
ObjectFiles: 451 of which compiled: 451
	Time Compile: 121204 milliseconds Bulk_mscorlib_6.cpp
	Time Compile: 102133 milliseconds Bulk_mscorlib_1.cpp
	Time Compile: 99667 milliseconds Il2CppAttributes.cpp
	Time Compile: 94028 milliseconds Bulk_UnityEngine.UI_0.cpp
	Time Compile: 93617 milliseconds GenericMethods0.cpp
	Time Compile: 86195 milliseconds Bulk_Generics_5.cpp
	Time Compile: 56645 milliseconds Bulk_mscorlib_0.cpp
	Time Compile: 54133 milliseconds Il2CppInvokerTable.cpp
	Time Compile: 52463 milliseconds Bulk_mscorlib_2.cpp
	Time Compile: 50084 milliseconds Bulk_mscorlib_3.cpp
Total compilation time: 471461 milliseconds.
il2cpp.exe didn't catch exception: Unity.IL2CPP.Building.BuilderFailedException: E:\Android NDK	oolchains\llvm-3.6\prebuilt\windows-x86_64\bin\clang++ @"C:\Users\vladi\AppData\Local\Temp	mpD027.tmp" -o "[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\linkresult_6C37AD2BD10E6255FB3F24E276C50955\libil2cpp.so" -Wl,-soname,libil2cpp.so -shared -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--gc-sections -Wl,--build-id --sysroot "E:\Android NDK\platforms\android-16\arch-arm" -gcc-toolchain "E:\Android NDK	oolchains\arm-linux-androideabi-4.9\prebuilt\windows-x86_64" -target armv7-none-linux-androideabi -Wl,--wrap,sigaction -L "E:\Android NDK\sources\cxx-stl\gnu-libstdc++\4.9\libs\armeabi-v7a" -lgnustl_static -Xlinker -Map="[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\linkresult_6C37AD2BD10E6255FB3F24E276C50955\libil2cpp.map" -fuse-ld=bfd

[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarRegisterLogFunc_m3302492093':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12247: undefined reference to `ezarRegisterLogFunc'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12247: undefined reference to `ezarRegisterLogFunc'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12247: undefined reference to `ezarRegisterLogFunc'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarNativeInit_m716861573':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12292: undefined reference to `ezarNativeInit'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarSetAssetPath_m1242544211':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12229: undefined reference to `ezarSetAssetPath'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarNativeInit_m716861573':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12292: undefined reference to `ezarNativeInit'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarSetAssetPath_m1242544211':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12229: undefined reference to `ezarSetAssetPath'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarOnResume_m1347189370':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12268: undefined reference to `ezarOnResume'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12268: undefined reference to `ezarOnResume'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarOnPause_m3015858977':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12278: undefined reference to `ezarOnPause'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12278: undefined reference to `ezarOnPause'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarGetProjectionGL_m2307621522':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12215: undefined reference to `ezarGetProjectionGL'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12215: undefined reference to `ezarGetProjectionGL'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarSetAssetPath_m1242544211':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12229: undefined reference to `ezarSetAssetPath'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarRegisterLogFunc_m3302492093':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12247: undefined reference to `ezarRegisterLogFunc'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarBase_IsValid_m340884984':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12257: undefined reference to `ezarBase_IsValid'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12257: undefined reference to `ezarBase_IsValid'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarSetRotation_m2224720687':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12307: undefined reference to `ezarSetRotation'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12307: undefined reference to `ezarSetRotation'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCreate_Augmenter_m3787425166':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12318: undefined reference to `ezarCreate_Augmenter'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12318: undefined reference to `ezarCreate_Augmenter'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarDestory_Augmenter_m2362994527':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12333: undefined reference to `ezarDestory_Augmenter'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12333: undefined reference to `ezarDestory_Augmenter'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_newFrame_m3473232041':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12343: undefined reference to `ezarAugmenter_newFrame'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12343: undefined reference to `ezarAugmenter_newFrame'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_attachCamera_m2645789609':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12358: undefined reference to `ezarAugmenter_attachCamera'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12358: undefined reference to `ezarAugmenter_attachCamera'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_detachCamera_m427907097':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12369: undefined reference to `ezarAugmenter_detachCamera'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12369: undefined reference to `ezarAugmenter_detachCamera'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_getVideoBackgroundTextureSize_m3270256581':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12387: undefined reference to `ezarAugmenter_getVideoBackgroundTextureSize'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12387: undefined reference to `ezarAugmenter_getVideoBackgroundTextureSize'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_getVideoBackgroundTextureFormat_m4099121420':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12397: undefined reference to `ezarAugmenter_getVideoBackgroundTextureFormat'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12397: undefined reference to `ezarAugmenter_getVideoBackgroundTextureFormat'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_setVideoBackgroundTextureID_m2617229536':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12408: undefined reference to `ezarAugmenter_setVideoBackgroundTextureID'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12408: undefined reference to `ezarAugmenter_setVideoBackgroundTextureID'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_getID_m4069868860':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12418: undefined reference to `ezarAugmenter_getID'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12418: undefined reference to `ezarAugmenter_getID'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarAugmenter_getRenderingFlag_m1893520459':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12429: undefined reference to `ezarAugmenter_getRenderingFlag'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12429: undefined reference to `ezarAugmenter_getRenderingFlag'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCreate_CameraCalibration_m2412659047':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12440: undefined reference to `ezarCreate_CameraCalibration'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12440: undefined reference to `ezarCreate_CameraCalibration'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarDestory_CameraCalibration_m3382695834':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12455: undefined reference to `ezarDestory_CameraCalibration'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12455: undefined reference to `ezarDestory_CameraCalibration'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCameraCalibration_getSize_m3415178612':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12472: undefined reference to `ezarCameraCalibration_getSize'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12472: undefined reference to `ezarCameraCalibration_getSize'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCameraCalibration_getFocalLength_m190374804':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12489: undefined reference to `ezarCameraCalibration_getFocalLength'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12489: undefined reference to `ezarCameraCalibration_getFocalLength'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCameraCalibration_getPrincipalPoint_m2452266459':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12506: undefined reference to `ezarCameraCalibration_getPrincipalPoint'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12506: undefined reference to `ezarCameraCalibration_getPrincipalPoint'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCameraCalibration_getDistortionParameters_m2947822044':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12523: undefined reference to `ezarCameraCalibration_getDistortionParameters'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12523: undefined reference to `ezarCameraCalibration_getDistortionParameters'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCreate_CameraDevice_m206099765':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12533: undefined reference to `ezarCreate_CameraDevice'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12533: undefined reference to `ezarCreate_CameraDevice'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarDestory_CameraDevice_m1716181910':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12548: undefined reference to `ezarDestory_CameraDevice'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12548: undefined reference to `ezarDestory_CameraDevice'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_cache\8372CFE379EBFF08FD56BB3E6F9BA945.o: In function `EngineNativeIOS_ezarCameraDevice_start_m55157562':
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12558: undefined reference to `ezarCameraDevice_start'
[Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12558: undefined reference to `ezarCameraDevice_start'
[Project Path]\Library\il2cpp_android_armeabi-v7a\il2cpp_ca<message truncated>

Any help will be greatly appreciated.

This is the key error:

In function `EngineNativeIOS_ezarRegisterLogFunc_m3302492093':
 [Project Path]\Temp\StagingArea\Il2Cpp\il2cppOutput/Bulk_EasyAR.Unity_0.cpp:12247: undefined reference to `ezarRegisterLogFunc'

It looks like you have a function named ezarRegisterLogFunc in native code somewhere that is not available in a native library built for Android. Based on the name of the type in managed code, EngineNativeIOS, I suspect that is is specific to iOS. So you might need to remove the EasyAR.dll assembly from the build on Android.

problem fixed here : il2cpp.exe did not run properly - YouTube