# Pastebin n7y18y6I
16-02-11 00:00:05 [0/330/480] [ModemManager] Try downloading ModemManager.0da5d322383c77bebde589788f77abd0dfa76969ddd1d7d12533200ea161d90b
16-02-11 00:00:07 [0/330/480] [ModemManager] Starting build of ModemManager.0da5d322383c77bebde589788f77abd0dfa76969ddd1d7d12533200ea161d90b 
16-02-11 00:00:07 [0/330/480] [ModemManager] Git checkout upstream:ModemManager in /root/ybd/tmp/tmpudjOvL/ModemManager.build 
16-02-11 00:00:07 [0/330/480] [ModemManager] Upstream version 0ca68657 1.4.0-169-g0ca6865 (1.4.0 + 169 commits) 
16-02-11 00:00:07 [0/330/480] [ModemManager] Autodetected build system is NOT FOUND
Traceback (most recent call last):
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/__main__.py", line 69, in <module>
    compose(defs, target)
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 87, in compose
    assemble(defs, component)  # bring in 'contents' recursively
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 102, in assemble
    install_contents(defs, component)
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 239, in install_contents
    install(defs, component, contents)
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 230, in install
    install(defs, component, content.get('contents', []))
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 231, in install
    compose(defs, content)
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 88, in compose
    build(defs, component)     # bring in 'build-depends', and run make
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 115, in build
    run_build(defs, component)
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 144, in run_build
    get_build_commands(defs, this)
  File "/src/workspace/baserock-15.10/baserock/baserock/ybd/ybd/assembly.py", line 309, in get_build_commands
    commands = defs.defaults.build_systems[bs].get(build_step, [])
KeyError: 'NOT FOUND'
16-02-11 00:00:08 [0/330/480] [gnome-system-x86_64] Exiting: uncaught exception