Thanks for your time.
I got the build going. Though with very many prompts where I had to just press RETURN for the build to complete. Some .sty files not being found and many options in some files being 'unknown' ones. I'll wait for another day to figure out/set right all those.
I could open the built pdf.
I will not speculate on how it might have happened, the build errors, I mean...suffice to say I had to reinstall cygwin...
Derek, thanks for renaming the files with the spaces in their names.
As you said, will use the master.pdf on the lift-book group.