@evidemment: That’s the english Version of the tutorial.
Could you make it again step-by-step, and double-check each point (especially don’t forget to allow super-user rights, if necassary)?
Were that the SAME problems with GAPPS? If yes, could you remember how you solved this the first time(s)?
For sake of completness, here is a very huge thread about similar problems, but I could not figure out a “final” solution, just a lot of hints what people tried…
Cheers, Robert