@TECK Thanks for your concern.Post your setup.py into support thread, I will check it tomorrow.
I tried to redo OC Plistlib Generator. I then successfully booted my Mac with OC0.7.9. Apparently I made a mistake the first time I edited it's setup.py. OC Plistlib Generator generated the only config.plist I could boot my Mac with OC 0.7.9. I would like to build my OC around this config.plist from now on.