IL2cpp compilation fails

Unity Engine
1

Hello!

I want to try IL2cpp. It does not work. Unity 2019.3.0a5. I get this message:

Failed running C:\Program Files\Unity\Hub\Editor\2019.3.0a5\Editor\Data\il2cpp/build/il2cpp.exe --convert-to-cpp --emit-null-checks --enable-array-bounds-check --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static --platform="WindowsDesktop" --architecture="x64" --configuration="Release" --outputpath="C:\programowanie\Artificer\Temp/StagingArea/Data\Native\GameAssembly.dll" --cachedirectory="C:\programowanie\Artificer\Assets\..\Library/il2cpp_cache" --profiler-report --map-file-parser="C:/Program Files/Unity/Hub/Editor/2019.3.0a5/Editor/Data/Tools/MapFileParser/MapFileParser.exe" --directory=C:/programowanie/Artificer/Temp/StagingArea/Data/Managed --generatedcppdir=C:/programowanie/Artificer/Temp/StagingArea/Data/il2cppOutput

stdout:
il2cpp.exe didn't catch exception: System.InvalidOperationException: Unknown MSVC version: 10.0
   at Unity.IL2CPP.Building.ToolChains.MsvcVersions.MsvcInstallation.GetMsvcVersionRequirementsForBuildingAndReasonItCannotBuild(Version version, Architecture architecture)
   at Unity.IL2CPP.Building.ToolChains.MsvcDesktopToolChain.GetCannotBuildInCurrentEnvironmentErrorMessage()
   at Unity.IL2CPP.Building.CppProgramBuilder.ThrowIfCannotBuildInCurrentEnvironment()
   at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)
   at il2cpp.Program.DoRun(String[] args)
   at il2cpp.Program.Run(String[] args)
   at il2cpp.Program.Main(String[] args)
stderr:

Unhandled Exception: System.InvalidOperationException: Unknown MSVC version: 10.0
   at Unity.IL2CPP.Building.ToolChains.MsvcVersions.MsvcInstallation.GetMsvcVersionRequirementsForBuildingAndReasonItCannotBuild(Version version, Architecture architecture)
   at Unity.IL2CPP.Building.ToolChains.MsvcDesktopToolChain.GetCannotBuildInCurrentEnvironmentErrorMessage()
   at Unity.IL2CPP.Building.CppProgramBuilder.ThrowIfCannotBuildInCurrentEnvironment()
   at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)
   at il2cpp.Program.DoRun(String[] args)
   at il2cpp.Program.Run(String[] args)
   at il2cpp.Program.Main(String[] args)

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0x000001F652C47A3B (Mono JIT Code) [IL2CPPUtils.cs:502] UnityEditorInternal.IL2CPPBuilder:RunIl2CppWithArguments (System.Collections.Generic.List`1<string>,System.Action`1<System.Diagnostics.ProcessStartInfo>,string)
0x000001F652C41AF3 (Mono JIT Code) [IL2CPPUtils.cs:483] UnityEditorInternal.IL2CPPBuilder:ConvertPlayerDlltoCpp (string,string,string,bool)
0x000001F652C0DFFB (Mono JIT Code) [IL2CPPUtils.cs:335] UnityEditorInternal.IL2CPPBuilder:Run ()
0x000001F652C0D61B (Mono JIT Code) [IL2CPPUtils.cs:71] UnityEditorInternal.IL2CPPUtils:RunIl2Cpp (string,UnityEditorInternal.IIl2CppPlatformProvider,System.Action`1<string>,UnityEditor.RuntimeClassRegistry)
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0x000001F63F1C52AB (Mono JIT Code) [BuildPlayerWindow.cs:798] UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings ()
0x000001F63F1A9BD3 (Mono JIT Code) [BuildPlayerWindow.cs:373] UnityEditor.BuildPlayerWindow:OnGUI ()
0x000001F629EA5F10 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
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0x00007FFF85913691 (ntdll) RtlUserThreadStart

Where do I begin debugging this? Thank you for your advice

2

Hi,

Sorry for super delayed response!

Looks like IL2CPP Crashes when we’re trying to tell you that you need to have Visual Studio installed to be able to build C++ code. We’ll fix the error message reporting.

3

Until we get the error message corrected, make sure you have either Visual Studio 2015 or Visual Studio 2017 installed along with the C++ Development Workload, in order to use IL2CPP.

4

Are we not able to use 2019 C++ tools yet even in Unity 2019.3? It’s giving me the same error.

5

It should work. Do you have C++ workload installed?

6

Restarting PC seems to have fixed it. I hadn’t needed to do that with the VS 2017 C++ tools so assumed it wouldn’t be an issue for 2019’s.