Burst not found MSVC installation

Unity Engine
1

Hello,

I downloaded GitHub - Unity-Technologies/multiplayer: Unity multiplayer packages and samples and I am trying to do some cool stuff.

It uses ECS, Burst, and lot of new stuff.

I create my little game (I am on MacOS), I build for MacOS and run with no problem.
But when I want to build for Windows, I got this error.

Failed running /Users/lbrugero/Library/Unity/cache/packages/packages.unity.com/com.unity.burst@0.2.4-preview.37/.Runtime/bcl.exe @/var/folders/xq/sy3r0y3d6qn4gng7vmf0xfd80000gn/T/tmp39e375aa.tmp

System.Exception: No MSVC installations were found on the machine!
  at Unity.IL2CPP.Building.ToolChains.MsvcVersions.MsvcInstallation.GetLatestFunctionalInstallation (Unity.IL2CPP.Common.Architecture architecture) [0x00082] in <d6ace09942684ce399de1cb371f766e9>:0
  at Unity.IL2CPP.Building.ToolChains.MsvcDesktopToolChain.get_MsvcInstallation () [0x00024] in <d6ace09942684ce399de1cb371f766e9>:0
  at Unity.IL2CPP.Building.ToolChains.MsvcToolChain.GetToolchainInfoForOutput () [0x00011] in <d6ace09942684ce399de1cb371f766e9>:0
  at Burst.Compiler.IL.Aot.AotLinker.Link (System.Collections.Generic.IEnumerable`1[T] objFiles, System.String outPath) [0x00021] in <9c22944a0d3942d0b3de41ca514e1ec6>:0
  at Burst.Linker.Program.Main (System.String[] args) [0x0017b] in <9c22944a0d3942d0b3de41ca514e1ec6>:0
Usage: blink.exe [options] <input .o/.obj/.ll files...>
      --help                 Show Help
      --platform=VALUE       Target Platform <Windows|macOS|Linux|Android|iOS|
                               PS4|XboxOne|Wasm|UWP>
      --target=VALUE         Target CPU <Auto|X86_SSE2|X86_SSE4|X64_SSE2|X64_
                               SSE4|AVX|AVX2|AVX512|WASM32|ARMV7A_NEON32|ARMV8A_
                               AARCH64|THUMB2_NEON32>
      --il2cpp-plugin-folder=VALUE
                             Plugin folder
      --output=VALUE         Output shared library file

An unexpected exception occurred:
stderr:

System.InvalidOperationException: The linker failed. Check previous exception in the log
  at Burst.Compiler.IL.Aot.AotCompiler.CallLinkerProcess (Burst.Backend.TargetPlatform platform, Burst.Backend.TargetCpu targetCpu, System.Collections.Generic.List`1[T] plugins, System.Collections.Generic.List`1[T] inputFiles, System.String outputFile) [0x00141] in <37bebafd236f4ccd943dc039a926a017>:0
  at Burst.Compiler.IL.Aot.AotCompiler.Link (Burst.Backend.Module module, Burst.Compiler.IL.Aot.AotCompilerOptions compilerOptions) [0x00130] in <37bebafd236f4ccd943dc039a926a017>:0
  at Burst.Bcl.BclApp.CompileAndLink (System.Collections.Generic.List`1[T] methodsToCompile) [0x00033] in <b81f17870d4f4ef0b5c9ddcb359b62f4>:0
  at Burst.Bcl.Program.Main (System.String[] args) [0x000d7] in <b81f17870d4f4ef0b5c9ddcb359b62f4>:0

UnityEngine.Debug:LogError(Object)
UnityEditorInternal.Runner:RunProgram(Program, String, String, String, CompilerOutputParserBase) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:128)
UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase, Action`1) (at /Users/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:73)
Unity.Burst.Editor.BurstAotCompiler:OnPostBuildPlayerScriptDLLs(BuildReport) (at /Users/lbrugero/Library/Unity/cache/packages/packages.unity.com/com.unity.burst@0.2.4-preview.37/Editor/BurstAotCompiler.cs:236)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

I have Visual Studio Community, I have the Unity plugins into it.

Thanks for help

2

You can’t cross-compile a Windows player from MacOS Unity. It is not related to burst, but you need to be on a Windows machine with the VS tooling installed to do that. IL2CPP is imposing this same constraint.

3

Hey xoofx, thanks for your reply.

I am not sure to understand…
I’ve always compiled Windows game from my MacOS computer without problem and give to my friend on Windows and worked pretty well.

4

Hey, from my understanding, there’re 2 scripting backgrounds where you can find in the player settings, they are Mono and IL2CPP. Mono is an open sourced DotNet implementation, it can run everywhere so you can compile a Windows game on your Mac, no problem. However IL2CPP is a bit different, its name means Intermediate Language To C Plus Plus, where Intermediate Language is the thing behind DotNet-family, all code you write in C# will be translated into IL eventually. The project your download from the Unity repo is IL2CPP by default. IL2CPP will compile your code into platform specific C++ code and you can’t compile a windows game on your mac with it at this moment, it’s called cross-compile. I hope this makes it clear.

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