'p4/clientapi.h' file not found

hi there:
I’m using source code installing UE4, branch is release.
But when compiling using Mac Book Pro 2018, get Errors:
‘p4/clientapi.h’ file not found and
‘HAl/ThreadSafeBool.h’ file not found

Hi, same error. Mac book pro 2015…

You Volume is case sensitive, So you must modify ‘HAl/ThreadSafeBool.h’ → ‘HAL/ThreadSafeBool.h’

With ‘p4/clientapi.h’ file, You need to modify Engine/Source/ThirdParty/Perforce/Perforce.Build.cs and Use the “Include” instead of “include”.