[me@build]$ bitbake core-image-sato
ERROR: Execution of event handler 'config_reparse_eventhandler' failed
Traceback (most recent call last):
  File "/home/jack/poky/meta/classes/sanity.bbclass", line 1006, in config_reparse_eventhandler(e=<bb.event.ConfigParsed object at 0x7f90dd058438>):
     python config_reparse_eventhandler() {
    >    sanity_check_conffiles(e.data)
     }
  File "/home/jack/poky/meta/classes/sanity.bbclass", line 568, in sanity_check_conffiles(d=<bb.data_smart.DataSmart object at 0x7f90dd1cc780>):
                 except NotImplementedError as e:
    >                bb.fatal(e)
                 d.setVar("BB_INVALIDCONF", True)
  File "/home/jack/poky/bitbake/lib/bb/__init__.py", line 103, in fatal:
     def fatal(*args, **kwargs):
    >    mainlogger.critical(''.join(args), extra=kwargs)
         raise BBHandledException()
TypeError: sequence item 0: expected str instance, NotImplementedError found

ERROR: Error parsing configuration files
Traceback (most recent call last):
  File "/home/jack/poky/bitbake/lib/bb/event.py", line 124, in fire_class_handlers(event=<bb.event.ConfigParsed object at 0x7f90dd058438>, d=<bb.data_smart.DataSmart object at 0x7f90dd1cc780>):
                         continue
    >            execute_handler(name, handler, event, d)

  File "/home/jack/poky/bitbake/lib/bb/event.py", line 96, in execute_handler(name='config_reparse_eventhandler', handler=<function config_reparse_eventhandler at 0x7f90dcf85b70>, event=<bb.event.ConfigParsed object at 0x7f90dd058438>, d=<bb.data_smart.DataSmart object at 0x7f90dd1cc780>):
         try:
    >        ret = handler(event)
         except (bb.parse.SkipRecipe, bb.BBHandledException):
  File "/home/jack/poky/meta/classes/sanity.bbclass", line 1006, in config_reparse_eventhandler(e=<bb.event.ConfigParsed object at 0x7f90dd058438>):
     python config_reparse_eventhandler() {
    >    sanity_check_conffiles(e.data)
     }
  File "/home/jack/poky/meta/classes/sanity.bbclass", line 568, in sanity_check_conffiles(d=<bb.data_smart.DataSmart object at 0x7f90dd1cc780>):
                 except NotImplementedError as e:
    >                bb.fatal(e)
                 d.setVar("BB_INVALIDCONF", True)
  File "/home/jack/poky/bitbake/lib/bb/__init__.py", line 103, in fatal:
     def fatal(*args, **kwargs):
    >    mainlogger.critical(''.join(args), extra=kwargs)
         raise BBHandledException()
TypeError: sequence item 0: expected str instance, NotImplementedError found