Unable to create webGL build in linux unity 2020.1.0f1

I am working on a game in unity3d. I want to generate a webGL build. i use pop os linux. i switched platform to html5 and clicked “build and run”. the build keeps failing. Please help!
I am getting the following errors

Failed running /home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/il2cpp/build/deploy/netcoreapp3.0/il2cpp --convert-to-cpp --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static --platform="WebGL" --architecture="EmscriptenJavaScript" --configuration="Release" --outputpath="/home/josprachi/hello_worldUnity2d/Assets /../Temp/StagingArea/Data/Native/build.bc" --cachedirectory="/home/josprachi/hello_worldUnity2d/Assets/../Library/il2cpp_cache" --compiler-flags="-Oz -DIL2CPP_EXCEPTION_DISABLED=1 " --baselib-directory="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/Variations/nondevelopment" --avoid-dynamic-library-copy --emit-method-map --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_AIModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_AccessibilityModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_AndroidJNIModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_AnimationModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_AssetBundleModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_AudioModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_ClothModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_CoreModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_CrashReportingModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_DSPGraphModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_DirectorModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_GameCenterModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_GridModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_HotReloadModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_IMGUIModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_ImageConversionModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_InputLegacyModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_InputModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_JSONSerializeModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_LocalizationModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_ParticleSystemModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_PerformanceReportingModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_Physics2DModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_PhysicsModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_ProfilerModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_ScreenCaptureModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_SharedInternalsModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_SpriteMaskModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_SpriteShapeModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_StreamingModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_SubstanceModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_SubsystemsModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_TLSModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_TerrainModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_TerrainPhysicsModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_TextCoreModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_TextRenderingModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_TilemapModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UIElementsModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UIElementsNativeModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UIModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UNETModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UmbraModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityAnalyticsModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityConnectModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityTestProtocolModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityWebRequestAssetBundleModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityWebRequestAudioModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityWebRequestModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityWebRequestTextureModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_UnityWebRequestWWWModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_VFXModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_VRModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_VehiclesModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_VideoModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_WebGLModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_WindModule_Dynamic.bc" --additional-libraries="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/PlaybackEngines/WebGLSupport/BuildTools/lib/modules/WebGLSupport_XRModule_Dynamic.bc" --profiler-report --map-file-parser="/home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/Tools/MapFileParser/MapFileParser" --directory="/home/josprachi/hello_worldUnity2d/Temp/StagingArea/Data/Managed" --generatedcppdir="/home/josprachi/hello_worldUnity2d/Temp/StagingArea/Data/il2cppOutput"

stdout:
Running il2cpp.exe in server GC mode.
Building build.bc with EmscriptenToolChain
    Output directory: /home/josprachi/hello_worldUnity2d/Temp/StagingArea/Data/Native
    Cache directory: /home/josprachi/hello_worldUnity2d/Library/il2cpp_cache
il2cpp.exe didn't catch exception: System.AggregateException: One or more errors occurred. (No such file or directory) (No such file or directory) (No such file or directory) (No such file or directory) (No such file or directory) (No such file or directory) (No such file or directory) (No such file or directory)
---> System.ComponentModel.Win32Exception (2): No such file or directory
   at System.Diagnostics.Process.ForkAndExecProcess(String filename, String[] argv, String[] envp, String cwd, Boolean redirectStdin, Boolean redirectStdout, Boolean redirectStderr, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec)
   at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start()
   at Unity.IL2CPP.Shell.SetupAndStart(ExecuteContext context, Boolean asyncMode) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 329
   at Unity.IL2CPP.Shell.ExecuteAsync(ExecuteArgs executeArgs, IExecuteController controller, Boolean asyncMode) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 256
   at Unity.IL2CPP.Shell.Execute(ExecuteArgs executeArgs, IExecuteController controller) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 277
   at Unity.IL2CPP.Building.CppProgramBuilder.ProvideObjectFile(IntermediateObjectFileCompilationData data) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/CppProgramBuilder.cs:line 319
   at Unity.IL2CPP.Building.ParallelFor.<>c__DisplayClass1_0`2.<RunWithResult>b__0(Object o) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/ParallelFor.cs:line 73
   --- End of inner exception stack trace ---
   at Unity.IL2CPP.Building.ParallelFor.RunWithResult[D,T](D[] data, Func`2 action) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/ParallelFor.cs:line 95
   at Unity.IL2CPP.Building.CppProgramBuilder.BuildAllCppFiles(IEnumerable`1 sourceFilesToCompile, IBuildStatisticsCollector statisticsCollector) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/CppProgramBuilder.cs:line 240
   at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/CppProgramBuilder.cs:line 135
   at il2cpp.Compilation.CompilationDriver.Run(RuntimePlatform platform, BuildingOptions buildingOptions) in /Users/bokken/build/output/unity/il2cpp/il2cpp/Compilation/CompilationDriver.cs:line 64
   at il2cpp.Program.DoRun(String[] args, RuntimePlatform platform, BuildingOptions buildingOptions) in /Users/bokken/build/output/unity/il2cpp/il2cpp/Program.cs:line 86
   at il2cpp.Program.Run(String[] args, Boolean setInvariantCulture) in /Users/bokken/build/output/unity/il2cpp/il2cpp/Program.cs:line 71
   at il2cpp.Program.Main(String[] args) in /Users/bokken/build/output/unity/il2cpp/il2cpp/Program.cs:line 36
---> (Inner Exception #1) System.ComponentModel.Win32Exception (2): No such file or directory
   at System.Diagnostics.Process.ForkAndExecProcess(String filename, String[] argv, String[] envp, String cwd, Boolean redirectStdin, Boolean redirectStdout, Boolean redirectStderr, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec)
   at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start()
   at Unity.IL2CPP.Shell.SetupAndStart(ExecuteContext context, Boolean asyncMode) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 329
   at Unity.IL2CPP.Shell.ExecuteAsync(ExecuteArgs executeArgs, IExecuteController controller, Boolean asyncMode) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 256
   at Unity.IL2CPP.Shell.Execute(ExecuteArgs executeArgs, IExecuteController controller) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 277
   at Unity.IL2CPP.Building.CppProgramBuilder.ProvideObjectFile(IntermediateObjectFileCompilationData data) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/CppProgramBuilder.cs:line 319
   at Unity.IL2CPP.Building.ParallelFor.<>c__DisplayClass1_0`2.<RunWithResult>b__0(Object o) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/ParallelFor.cs:line 73<---

---> (Inner Exception #2) System.ComponentModel.Win32Exception (2): No such file or directory
   at System.Diagnostics.Process.ForkAndExecProcess(String filename, String[] argv, String[] envp, String cwd, Boolean redirectStdin, Boolean redirectStdout, Boolean redirectStderr, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec)
   at System.Diagnostics.Process.StartCore(ProcessStartInfo s<message truncated>
Exception: /home/josprachi/Unity/Hub/Editor/2020.1.0f1/Editor/Data/il2cpp/build/deploy/netcoreapp3.0/il2cpp did not run properly!
UnityEditorInternal.Runner.RunProgram (UnityEditor.Utils.Program p, System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:148)
UnityEditorInternal.Runner.RunNetCoreProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1[T] setupStartInfo) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:97)
UnityEditorInternal.IL2CPPBuilder.RunIl2CppWithArguments (System.Collections.Generic.List`1[T] arguments, System.Action`1[T] setupStartInfo, System.String workingDirectory) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:527)
UnityEditorInternal.IL2CPPBuilder.ConvertPlayerDlltoCpp (UnityEditor.Il2Cpp.Il2CppBuildPipelineData data, System.String outputDirectory, System.String workingDirectory, System.Boolean platformSupportsManagedDebugging) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:509)
UnityEditorInternal.IL2CPPBuilder.Run () (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:342)
UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String stagingAreaData, UnityEditorInternal.IIl2CppPlatformProvider platformProvider, System.Action`1[T] modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry) (at /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:72)
UnityEditor.WebGL.WebGlBuildPostprocessor.CompileBuild (UnityEditor.Modules.BuildPostProcessArgs args) (at /Users/builduser/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:373)
UnityEditor.WebGL.WebGlBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args) (at /Users/builduser/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:911)
UnityEditor.Modules.DefaultBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at /home/builduser/buildslave/unity/build/Editor/Mono/Modules/DefaultBuildPostprocessor.cs:27)
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 /home/builduser/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:324)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&) (at /home/builduser/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)

sudo apt install libtinfo5 worked for me.

I’ve installed that, but also unable to create WebGL with either the released 2020 or 2020.2 beta. Anyone else have this problem?