error with building sugar-build

john@thinkndev:~/sugar-build$ make
Traceback (most recent call last):
  File "/home/john/sugar-build/commands/check-system", line 29, in <module>
    skip_if_unchanged=args.skip_if_unchanged)
  File "/home/john/sugar-build/devbot/system.py", line 178, in check
    if not run_checks(package_manager, config.load_checks(), packages):
  File "/home/john/sugar-build/devbot/system.py", line 105, in run_checks
    if distro_info.name in packages[check["name"]]:
KeyError: u'gst typelib'
make: *** [check-system] 오류 1