Exclamation Breakfast issue

hi guys,
i am following this tutorial for try to create a rom for galaxy s3 (i9300)
https://wiki.ubuntu.com/Touch/Portin...buntu_packages


when i run breakfast i9300 i get this message

Code:
nocomp@pirebox:~/ubuntutouch$ breakfast i9300
Couldn't locate the top of the tree.  Try setting TOP.
bash: build/tools/roomservice.py: No such file or directory

** Don't have a product spec for: 'cm_i9300'
** Do you have the right repo manifest?

nocomp@pirebox:~/ubuntutouch$ breakfast cm_i9300
Couldn't locate the top of the tree.  Try setting TOP.
bash: build/tools/roomservice.py: No such file or directory

** Don't have a product spec for: 'cm_cm_i9300'
** Do you have the right repo manifest?

nocomp@pirebox:~/ubuntutouch$ breakfast i9300
Couldn't locate the top of the tree.  Try setting TOP.
bash: build/tools/roomservice.py: No such file or directory

** Don't have a product spec for: 'cm_i9300'
** Do you have the right repo manifest?

nocomp@pirebox:~/ubuntutouch$ breakfast i9300
Couldn't locate the top of the tree.  Try setting TOP.
bash: build/tools/roomservice.py: No such file or directory

** Don't have a product spec for: 'cm_i9300'
** Do you have the right repo manifest?

nocomp@pirebox:~/ubuntutouch$
any help would be appreciate
thx a lot!

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