在Unity2019里选择 IL2CPP编译始终编译不通过，报错。
Exception: C:\Program Files\Unity\Hub\Editor\2019.2.12f1\Editor\Data\il2cpp/build/il2cpp.exe did not run properly!
UnityEditor.BuildPlayerWindow+BuildMethodException: 3 errors
at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x00242] in D:\unity\Editor\Mono\BuildPlayerWindowBuildMethods.cs:190
at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x0007f] in D:\unity\Editor\Mono\BuildPlayerWindowBuildMethods.cs:95
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr) (at D:/unity/Modules/IMGUI/GUIUtility.cs:179)
用Mono编译能通过