compilin error

follow this guide to compile in linux
https://mangosr2.forumotion.com/t8-compilind-and-installing-on-linux

but I can not make it compile.
run
compile_r2.sh
build folder appears
but not the core folder.
I do help please.
if we fix promise to do a video of how to compile with linux and give the credits of this community thank you very much.
use Ubuntu


my skype is  faiver1987

check access rights and true set install dir.

thx rsa
compile and well
https://mangosr2.forumotion.com/t99-compiling-and-placing-server-to-run