Im sorry i can't quite understand the error, you followed the instructions completely? i found it easy to make a bash script to install everything for me, just by copying all the lines of code i listen in a file and adding #!/bin/sh in the first line.
running chmod +x <>
and running ./

just pay attention when it prompts for any information. This sound tut works perfectly for the Acer 6920 on Hardy Heron, i haven't tried other. make sure ur statistics are the same