I ran into the same problem, error message and everything. I ended up tracking down the server location of MySQL and replacing “localhost” with the actual location. Then installation worked like a charm. I suspect that “99 percent” statement might need to be changed to 80 percent …
I, too, had the standard MySQL not found error message, as quoted above. Turns out I DID have to replace “localhost” with the actual location of the MySQL server. Then installation worked like a charm!