HaxeProject could not be compiled,Try rebuilding from source manually?

my unreal version is 5.0.3 is that right? or 5.0? and windows 11.
from your tutorial
1. install custom haxe version Haxe Compiler 4.3.0-rc.1 and then install hxcpp and hscript git version.
3. UpdateExternsInSampleProject.bat && cd SampleProject\Haxe\HaxeStaticLib\ && haxe .\compile.hxml
4. cd SampleProject\Haxe\ && haxe .\compile.hxml
5. click HaxeProject.uproject then click ok..
what's wrong of my step?

HaxeProject could not be compiled,Try rebuilding from source manually?
my unreal version is 5.0.3 is that right? or 5.0? and windows 11.
from your tutorial
what's wrong of my step?