I try to install Sierra 10.12.6 on my Alienware 15 r2, ofter using a lot of flags: -v,dart=0, nv_disable=1,IGBEnabler=yes,cpus=1, ahcdisk=8,debug=8, -no_comp_check.
The process started promising but i got this error at some point! I had a lot of erros before, but i solved them with tags, looks...