I'm getting IL2CPP build error for some reason

Questions & Answers
1

For some reason, I’m getting build errors. I was be able to build my project clearly with mono. I’m trying to build the project with IL2CPP now and getting some errors. Here is the errors and console messages.

Error 1:

Internal build system error. BuildProgram exited with code -2147024893.
System.IO.DirectoryNotFoundException: Could not find a part of the path 'D:\Program Files\Unity\Hub\Editor\2021.2.6f1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\�l2cpp\Development\StaticLibs\armeabi-v7a\compile.rsp'.
   at System.IO.FileStream.ValidateFileHandle(SafeFileHandle fileHandle)
   at System.IO.FileStream.CreateFileOpenHandle(FileMode mode, FileShare share, FileOptions options)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
   at System.IO.StreamReader.ValidateArgsAndOpenPath(String path, Encoding encoding, Int32 bufferSize)
   at System.IO.StreamReader..ctor(String path, Encoding encoding, Boolean detectEncodingFromByteOrderMarks)
   at System.IO.File.InternalReadAllText(String path, Encoding encoding)
   at System.IO.File.ReadAllText(String path)
   at NiceIO.NPath.SystemIOFileSystem.File_ReadAllText(NPath path)
   at NiceIO.NPath.WindowsFileSystem.File_ReadAllText(NPath path)
   at Bee.Core.Stevedore.VirtualFileSystem.File_ReadAllText(NPath path)
   at NiceIO.NPath.RelayingFileSystem.File_ReadAllText(NPath path)
   at Bee.Core.BuildProgramFileSystem.File_ReadAllText(NPath path)
   at NiceIO.NPath.ReadAllText()
   at AndroidPlayerBuildProgram.AndroidPlayerBuildProgram.SetupCompile(AndroidSharedLibraryConfiguration config, String name, AndroidTargetDeviceType deviceType, NPath sourceFilePath)
   at AndroidPlayerBuildProgram.AndroidPlayerBuildProgram.SetupLibUnityLibrary()+MoveNext()
   at System.Collections.Generic.List`1.InsertRange(Int32 index, IEnumerable`1 collection)
   at System.Collections.Generic.List`1.AddRange(IEnumerable`1 collection)
   at AndroidPlayerBuildProgram.AndroidPlayerBuildProgram.SetupPlayerBuild()
   at PlayerBuildProgramLibrary.PlayerBuildProgramBase.RunBuildProgram()
   at PlayerBuildProgramTypeWrapper.Run(String[] args)
   at Program.Main(String[] args)
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Error 2:

BuildFailedException: Incremental Player build failed!
UnityEditor.Modules.BeeBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args) (at <52409df47eec4ff4a3e5a5be37682d54>:0)
UnityEditor.Modules.DefaultBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <52409df47eec4ff4a3e5a5be37682d54>:0)
UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <aa9f40e1a34f4b01ac44d2ce67124834>:0)
UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.Int32 subtarget, 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 <52409df47eec4ff4a3e5a5be37682d54>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)
2

I finally solved my problem.

2 things you must be sure

  1. Set your Windows Display Language to English
  2. Change your Unity version from 2021.2 to 2020.3

These 2 thing most probably solve your problem like mine