I'm building a WebGL target in the new Linux Editor (5.4.0b13+20160406). The build is failing with the error `System.NotSupportedException: Don't know how to get python path on current platform!`. The exact same project builds fine when using the editor in my OSX environment. I need it to work in the Linux environment as that's running our CI server.
There doesn't appear to be anything different with the Python environment between my mac and the linux CI server. Here's a snippet of the error:
Unhandled Exception:
System.NotSupportedException: Don't know how to get python path on current platform!
at Unity.IL2CPP.Building.ToolChains.EmscriptenPaths.get_Python () [0x00000] in :0
at Unity.IL2CPP.Building.ToolChains.EmscriptenToolChain.CompilerExecutableFor (NiceIO.NPath sourceFile) [0x00000] in :0
at Unity.IL2CPP.Building.CppProgramBuilder.ProvideObjectFile (Unity.IL2CPP.Building.CppCompilationInstruction cppCompilationInstruction) [0x00000] in :0
at Unity.IL2CPP.Building.ParallelFor+c__AnonStorey1`2[Unity.IL2CPP.Building.CppCompilationInstruction,Unity.IL2CPP.Building.ProvideObjectResult].<>m__0 (System.Object o) [0x00000] in :0
at System.Threading.Thread.StartInternal () [0x00000] in :0
[ERROR] FATAL UNHANDLED EXCEPTION: System.NotSupportedException: Don't know how to get python path on current platform!
at Unity.IL2CPP.Building.ToolChains.EmscriptenPaths.get_Python () [0x00000] in :0
at Unity.IL2CPP.Building.ToolChains.EmscriptenToolChain.CompilerExecutableFor (NiceIO.NPath sourceFile) [0x00000] in :0
at Unity.IL2CPP.Building.CppProgramBuilder.ProvideObjectFile (Unity.IL2CPP.Building.CppCompilationInstruction cppCompilationInstruction) [0x00000] in :0
at Unity.IL2CPP.Building.ParallelFor+c__AnonStorey1`2[Unity.IL2CPP.Building.CppCompilationInstruction,Unity.IL2CPP.Building.ProvideObjectResult].<>m__0 (System.Object o) [0x00000] in :0
at System.Threading.Thread.StartInternal () [0x00000] in :0
UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:LogError(Object)
UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase, Action`1) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:98)
UnityEditorInternal.IL2CPPBuilder:ConvertPlayerDlltoCpp(ICollection`1, String, String) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:350)
UnityEditorInternal.IL2CPPBuilder:Run() (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:213)
UnityEditorInternal.IL2CPPUtils:RunIl2Cpp(String, IIl2CppPlatformProvider, Action`1, RuntimeClassRegistry, Boolean) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:139)
UnityEditor.WebGL.WebGlBuildPostprocessor:PostProcess(BuildPostProcessArgs) (at /Users/builduser/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:392)
UnityEditor.PostprocessBuildPlayer:Postprocess(BuildTarget, String, String, String, Int32, Int32, String, String, BuildOptions, RuntimeClassRegistry, BuildReport) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:177)
UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, BuildTarget, BuildOptions, Boolean)
UnityEditor.BuildPipeline:BuildPlayerInternal(String[], String, BuildTarget, BuildOptions) (at /home/builduser/buildslave/unity/build/artifacts/generated/common/editor/BuildPipelineBindings.gen.cs:247)
UnityEditor.BuildPipeline:BuildPlayer(String[], String, BuildTarget, BuildOptions) (at /home/builduser/buildslave/unity/build/artifacts/generated/common/editor/BuildPipelineBindings.gen.cs:182)
BuildScript:BuildAlphaWeb() (at Assets/Editor/BuildScript.cs:37)
(Filename: /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs Line: 98)
Exception: /opt/Unity/Editor/Data/il2cpp/build/il2cpp.exe did not run properly!
at UnityEditorInternal.Runner.RunManagedProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1 setupStartInfo) [0x00160] in /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:100
at UnityEditorInternal.IL2CPPBuilder.ConvertPlayerDlltoCpp (ICollection`1 userAssemblies, System.String outputDirectory, System.String workingDirectory) [0x002b0] in /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:350
at UnityEditorInternal.IL2CPPBuilder.Run () [0x0008b] in /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:213
at UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String stagingAreaData, IIl2CppPlatformProvider platformProvider, System.Action`1 modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry, Boolean developmentBuild) [0x0000d] in /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:139
at UnityEditor.WebGL.WebGlBuildPostprocessor.PostProcess (BuildPostProcessArgs args) [0x001ee] in /Users/builduser/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:392
at UnityEditor.PostprocessBuildPlayer.Postprocess (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) [0x000ce] in /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:177
UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, BuildTarget, BuildOptions, Boolean)
UnityEditor.BuildPipeline:BuildPlayerInternal(String[], String, BuildTarget, BuildOptions) (at /home/builduser/buildslave/unity/build/artifacts/generated/common/editor/BuildPipelineBindings.gen.cs:247)
UnityEditor.BuildPipeline:BuildPlayer(String[], String, BuildTarget, BuildOptions) (at /home/builduser/buildslave/unity/build/artifacts/generated/common/editor/BuildPipelineBindings.gen.cs:182)
BuildScript:BuildAlphaWeb() (at Assets/Editor/BuildScript.cs:37)
(Filename: /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs Line: 100)
DisplayProgressNotification: Build Failed
Error building Player: 2 errors
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