il2cpp did not run properly error

Please someone help me!!!

When i try build webgl i got 'il2cpp did not run properly'


And then i look the description i saw this how can i fix it.
'No mapping for the Unicode character exists in the target multi-byte code page.'

 

error changed, i send new error.

Spoiler: Error Details

Win32Exception: ApplicationName='C:\Program Files\Unity\Hub\Editor\2020.1.11f1\Editor\Data\il2cpp/build/deploy/netcoreapp3.0/il2cpp.exe', CommandLine='--convert-to-cpp --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static --platform="WebGL" --architecture="EmscriptenJavaScript" --configuration="Release" --outputpath="C:\UnityProjects\DemoProject\Assets /../Temp/StagingArea/Data\Native\build.bc" --cachedirectory="C:\UnityProjects\DemoProject\Assets\..\Library/il2cpp_cache" --compiler-flags="-Oz -DIL2CPP_EXCEPTION_DISABLED=1 " --baselib-directory="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\Variations\nondevelopment" --avoid-dynamic-library-copy --emit-method-map --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_AccessibilityModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_AIModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_AndroidJNIModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_AnimationModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_AssetBundleModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_AudioModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_ClothModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_CoreModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_CrashReportingModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_DirectorModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_DSPGraphModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_GameCenterModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_GridModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_HotReloadModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_ImageConversionModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_IMGUIModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_InputLegacyModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_InputModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_JSONSerializeModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_LocalizationModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_ParticleSystemModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_PerformanceReportingModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_Physics2DModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_PhysicsModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_ProfilerModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_ScreenCaptureModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_SharedInternalsModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_SpriteMaskModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_SpriteShapeModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_StreamingModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_SubstanceModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_SubsystemsModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_TerrainModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_TerrainPhysicsModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_TextCoreModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_TextRenderingModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_TilemapModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_TLSModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UIElementsModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UIElementsNativeModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UIModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UmbraModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UNETModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityAnalyticsModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityConnectModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityTestProtocolModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityWebRequestAssetBundleModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityWebRequestAudioModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityWebRequestModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityWebRequestTextureModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_UnityWebRequestWWWModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_VehiclesModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_VFXModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_VideoModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_VRModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_WebGLModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_WindModule_Dynamic.bc" --additional-libraries="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/PlaybackEngines/WebGLSupport\BuildTools\lib\modules\WebGLSupport_XRModule_Dynamic.bc" --profiler-report --map-file-parser="C:/Program Files/Unity/Hub/Editor/2020.1.11f1/Editor/Data/Tools/MapFileParser/MapFileParser.exe" --directory=C:/UnityProjects/DemoProject/Temp/StagingArea/Data/Managed --generatedcppdir=C:/UnityProjects/DemoProject/Temp/StagingArea/Data/il2cppOutput ', CurrentDirectory='C:\UnityProjects\DemoProject\Temp\StagingArea\Data\Managed', Native error= İstenen işlem için yükseltme gerekiyor.

System.Diagnostics.Process.StartWithCreateProcess (System.Diagnostics.ProcessStartInfo startInfo) (at <aa976c2104104b7ca9e1785715722c9d>:0)
System.Diagnostics.Process.Start () (at <aa976c2104104b7ca9e1785715722c9d>:0)
(wrapper remoting-invoke-with-check) System.Diagnostics.Process.Start()
UnityEditor.Utils.Program.Start (System.EventHandler exitCallback) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditor.Utils.Program.Start () (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditorInternal.Runner.RunProgram (UnityEditor.Utils.Program p, System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditorInternal.Runner.RunNetCoreProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1[T] setupStartInfo) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditorInternal.IL2CPPBuilder.RunIl2CppWithArguments (System.Collections.Generic.List`1[T] arguments, System.Action`1[T] setupStartInfo, System.String workingDirectory) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditorInternal.IL2CPPBuilder.ConvertPlayerDlltoCpp (UnityEditor.Il2Cpp.Il2CppBuildPipelineData data, System.String outputDirectory, System.String workingDirectory, System.Boolean platformSupportsManagedDebugging) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditorInternal.IL2CPPBuilder.Run () (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String stagingAreaData, UnityEditorInternal.IIl2CppPlatformProvider platformProvider, System.Action`1[T] modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditor.WebGL.WebGlBuildPostprocessor.CompileBuild (UnityEditor.Modules.BuildPostProcessArgs args) (at /Users/bokken/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:373)
UnityEditor.WebGL.WebGlBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args) (at /Users/bokken/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:911)
UnityEditor.Modules.DefaultBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <282860f440ac4f48a82a3a8aaaec3082>:0)
UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr, Boolean&)

 

İstenen işlem için yükseltme gerekiyor = An upgrade is required for the requested action.

 

This is fresh project, i create a project and try to build, pls help me anyone doesnt help me

 

I have same issue did you fix?

 

Still getting this in 2021.1.22f, cannot build web versions for client :-(
"No mapping for the Unicode character exists in the target multi-byte " etc.

 

This is ALL VERSIONS of Unity, always on any project, eve n an empty one. pretty big bug that web building is done for/BROKEN. And no one seems to notice, lucky for unity no is is making web games!!!!! Nothing suprises me now with unity.

 

What's the number of the bug report you submitted?