Common build errors

Error building Player: X errors - Build completed with a result of 'Failed'.
UnityEditor.BuildPlayerWindow+BuildMethodException: X errors.
Error building Player because scripts had compiler errors.
CS0246 The type of namespace name 'UnityEditor' could not be found, Are you missing an assembly reference?
stdout: il2cpp.exe didn't catch exception: System.InvalidOperationException: C# code builder is unable to build C# code.
Burst Compiler Failed Running.
'' is an incorrect path for a scene file. BuildPlayer expects path relative to the project folder.
Currently selected scripting backend (IL2CPP) is not installed.